About my 2nd time, from my experience, let's say it this way:
Whatever you do, you will feel an enormous pain and lots of horrible symptoms.
The question is: whether you want to experience it in a short period of time and in full strength, or would you like to have milder symptoms which will last longer?
So, you can feel the pain, on a scale from 1-10, which is 10/10 strong and it will last for 2 Months, and you will be fine after that (but you will experience a hell during those 2 Months and you can end at ER).
Or, you can do it slower, feel the pain, let's say of 6/10 or 7/10 strength, and it will last for 6 Months.
About your pulse, this is my story:
My resting heart rate before BBs was around 70-72.
Then, when taking 1,25 or 1,80Mg of Bisoprolol, my resting HR was 60, sometimes 50-ish (at night).
When I tried to do some exercise or drive a static bike, I had the same problems as you.
No matter what I did, I couldn't get my HR to higher than 85-90.
So, I was out of breath, but my HR was still very low.
And then, when I have quit BBs for the 1st time, after 20 days my resting HR jumped to 100-105 (from 50-60 to 100-105. Imagine a shock for your body and for your heart). If I had to go to a toilet or something, it would jump to 130-140, after only a few steps.
It stayed that way (it was almost impossible to get out of bed and make something to eat) for 2-3 weeks.
Then slowly my resting HR dropped to 90. It was still too high, but better than 100-105.
You see, you can really damage your heart or suffer a deadly complications when you heart beats 100+ for several weeks in a row (especially when it was beating at heart rate 50 for 1, 2, 5 or 10 years. That is a huge stress for your heart in those weeks. Your heart is just not used to beat that fast and to work that hard anymore).
Then after a few weeks, anxiety kicked in. Like a lot of people here, I have never had any anxiety issues in my life. I was reading about it, but I never knew what it is.
And then, after 3-4 weeks into a withdrawal, I just started to feel enormous fear from everything.
And I was nervous all day long. Strange feeling in my stomach, tight neck, you are feeling hot all the time.
For no reason.
You'll see it, it is not psychological.
You can't stop it on your own. It is a sort of a chemical imbalance in your body.
The thing is, when we take Beta blockers, they work like an anesthesia towards our adrenaline receptors.
Normally, when we don't take Beta blockers, adrenaline receptors in our body react to adrenaline.
When you are happy, your body pumps more adrenaline. When you are scared, your body pumps more adrenaline. When you are nervous, your body pumps more adrenaline.
And then, when more adrenaline is pumped due to being happy, scared or nervous, your adrenaline receptors send a message to your brain: we have a lot of adrenaline in our bodies, something is happening, you need to raise a heart rate and raise a breathing rate (or a fight or flight response).
You know, when you are scared, how your heart rate jumps up?
Well, it is because of adrenaline, adrenaline receptors and our brain. This mechanism controls our heart rate 24 hours per day.
And now, when you take Beta blockers, these drugs work like an anesthesia towards these receptors.
Why?
Well, if someone already has a too high heart rate, too high blood pressure, or some arrhythmias, then it is safer to avoid being nervous, scared and similar, because your Heart rate will jump too high and you can suffer a heart attack or something.
So, basically, these drugs are preventing our bodies to be too scared, too happy and similar, and they are preventing our hearts to beat too fast (in order to protect our hearts) and they are preventing deadly events.
But, the problem is: if you want to quit the drugs, you will experience problems then.
Since your adrenaline receptors were "sleeping" while you were taking drugs, they "forgot" how to work properly and how to deal with the adrenaline.
And now, when you quit the drugs, your body and these receptors are too sensitive to adrenaline, and to every emotion.
In numbers, imagine that you were feeling 100% of emotions before you were taking Beta blockers.
Then, while you were taking Beta blockers, you were able to feel only 50% of emotions (or only 50% of their total strength).
And now, when you will quit BBs, you will feel 200% of emotions.
So, when you quit BBs, in the first few weeks (or Months), whatever you will feel, you will feel it stronger than ever.
If you will be happy, you will feel strange, "stronger" happiness than before.
But, if you will feel sad, scared, nervous or something, it will also feel 2-3 times stronger than ever in your life.
And this is when anxiety kicks in.
You will just feel strange all the time.
And your brain won't know how to deal with anxiety and fears in the first few weeks, until it will re-adjust.
I have wrote before, for some reason I had problems with loud noises, with strong light, with sunlight in the first few weeks.
If there was a normal light in a room, I would say: oh, please, turn off that light, it is killing me (I can't explain why). The same was with music, movies, news on a tv or any type of noises.
But you see, my brain forgot how to deal with everyday life, because Beta Blockers have put my adrenaline receptors to sleep.
About water, drinking fluids raises our blood volume.
And in every person, whenever you don't have enough fluids, your blood volume goes down, and then a heart beats faster to compensate it.
When you have enough of fluids, your blood volume is higher and a heart beats slower.
This is important for all people, but especially during a withdrawal, when your HR will stay at 90-100-110 while resting for a few weeks.
You can lower it down with fluids.
If you won't drink them, then your withdrawal's HR will jump even higher.
So, you will have: 1. a withdrawal plus 2. a lack of fluids
About my 2nd time, when I started to take BBs again, I was taking 1,25Mg of Biso, but after 2-3 weeks I dropped to 0,90Mg and 0,62Mg (half a dose) and after that point, I started to lower 0,10Mg per Month.
Like: 0,60Mg, then 0,50Mg, 0,40Mg etc.
It was a hell even that way. I needed 8-9 Months to go down to 0 and even then I had 8-9 months of weaning off plus 2 months of a mild withdrawal.
During these 8-9 months of weaning off and lowering a dose, I had minor withdrawals all the time.
But, as explained, in my 1st attempt, when I weaned off fast (in 6 weeks), my resting HR jumped to 100-105 and stayed that way for 3 weeks.
While when I weaned off slower, it looked like this:
I lowered my dose to 0,50Mg: I would feel bad for 7 days, then it would be ok-ish.
I would stay on that dose for 2-3 more weeks and I tried to walk slowly and do some normal everyday activities.
Then, when I would feel better, I would lower a dose to 0,40Mg.
Then the same would happen: a few days of a HR 90-ish, breathing problems, nausea.
After 7 days it would get better.
And I would stay on that dose again until I would feel better.
And then repeat the same for 5-6-7 times.
So, I still had dizziness, nausea, breathing problems, elevated resting HR, it was hard to walk etc.
But everything was milder, like at 50%, of what I have experience in my 1st attempt.
Plus, I didn't have to go to ER, and currently I am 1 years off drugs.
But, my original arrhythmia was milder and my doc told me that I am allowed to quit the drugs, if that is my choice.
So, not everyone can stop taking drugs.
Each of us is different, of a different age, with different heart/blood pressure problems.
What worked for me, may not work for you.
So, please, ask your doc whether you can lower drugs, because during a withdrawal, we usually get lots of different tachycardias, arrhythmias and similar.
And they can be deadly in some cases.
Good luck
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