Hi Penny, I too get arrhythmia which sometimes gives me an anxious, panicky feeling, when there is no reason to feel that way. I have noticed that it comes on when my ferritin iron levels have built up, and I usually am feeling more fatigued and achey as well. Then when I have a venesection it goes away.
I have a very low optimal level of ferritin iron - I feel best when my level is about 34. You, too, will find your optimal level when you keep records of your blood tests and note how you felt at that time. Eventually you will get it. Take note of your optimal level, not when your dr thinks you are at the right level. Hopefully, your dr will refer you to a haemotologist who can monitor your blood levels better, and take you down to <30 to get the ferritin out of the body. As you are menstruating, it will take special monitoring.
I was feeling very concerned about this arrythmia because at first I did not feel it happening, a dr listened to my heart and sent me off to a cardiologist who did a 24 hr holter test and found I had 21,000 extra heartbeats in 24 hrs. Two cardiologists just kept shrugging their shoulder about it. I fought to see a specialist cardiologist. I was worried about build up of iron in my heart muscles, etc. The wisest advice I got was that, even if there was a build up of iron deposits in my heart, there is nothing that can be done to remove other than venesections. It can't be cut out, nor drained, etc.
I bought a heart monitor that runners use - a strap around the chest which sends a signal to a wrist band. I was able to recognise when I was really having arrythmia and tried to relax and make it slow down. Because I was getting bio-feedback from the wrist band, it was quite easy to do. Mostly now, I feel it when I lie on right side to sleep. Sometimes it is a boom, boom, boom, and sometimes it is a faint very fast flutter. I just make it relax and it goes back to normal.
So, my venesections are very important to me, and I see them as positive progress towards maintaining health. I can't say I will ever have good health because too much damage was done as it took 9 years to get a diagnosis, made worse because I had a hysterectomy before the onset of the symptoms, which is far different to you.
Another spanner in the works happens when my oestrogen supplements are insufficient for my body's needs. When this happens, I will suddenly, for no reason, get an overwhelming wave of depression, or anxiety, and insufficient oestrogen causes arrythmia too. So it is such a two-edged sword for me. But I have come to recognise which is causing which.
I have been on 3-monthly maintenance venesections for years now, and boy, do I look forward to them. Even if they have to make 4 attempts to get enough blood out of me and I end up looking like a pin cushion, they are my friends.
An important marker that identifies Hereditary Haemochromatosis is the TS%. It has to be >40% for it to be HH. If it is not, you might have a high ferritin because of say, fatty liver.
I am from Australia too, so have a look at the Haemochromatosis Australia website. If I put in the URL, you will not get this post for a day or two, so google it. I am a member and we are having a conference in May in Melbourne to which I will be travelling and taking part in.
However, I get a lot of information from the Iron Disorders Institute in the U.S. Look up their forms as well.
Looking forward to hearing how you go with your tests.