Hi Ali, I'm so sorry about your son, but I'm glad that you came through the grieving alright.
I am certain that the pain is withdrawal, and I'm sorry to say that it is NEVER recommended to do a cold turkey off of SSRIs. You are only two months out from your CT so there is still time to reinstate a small dose to a) relieve current withdrawal symptoms and b) hopefully prevent protracted withdrawal from unfurling. Unfortunately, your withdrawal may have only just begun; SSRI withdrawal notoriously can start off slow and build to a big punch several months out. Going off fast doesn't mean that getting over it will be fast.
Symptoms can run the gammut from digestive upsets, nausea, sleep disturbances, brain and body zaps, burning skin sensations, prickling sensations, headaches, pains throughout the body, heart palpitations and arrythmia, increased blood pressure, extreme sweating, flu-like symptoms etc. There are many and some can be quite bizaar!
I am on a psych drug withdrawal forum that has been around for many years and has folks moderating that have been in the trenches advising people for all those years. I would recommend joining that group as they are very knowledgeable, compassionate, and supportive, and someone always responds to questions quickly. The site is called Surviving Antidepressants.
I have written up a post about getting off safely which includes a link to that site: https://patient.info/forums/discuss/withdrawing-from-antidepressants-and-benzos-safely-485891?page=0#1809368
There is no shame in reinstating a very small dose, maybe just a few mgs. Problem is, they just don't make the pills in sizes that are conducive to tapering off sanely and safely. You may be able to have your doctor prescribe a liquid version that can be dosed with a syringe so that you can take the equivalent of 2 or 3 mg. Again, I would advise joining the forum so that those they can guide you, though I know that is what they will say ;-)
It helps to understand that getting off these drugs is not about getting it out of your system and being done. The action of the drug causes the nervous system to adapt physiologically so that it can regain balance, and when you take the drug away suddenly, it's like ripping out a trellis that a vine had climbed and expecting the vine to be able to stay up! It takes time for the nervous system to adapt back, and in the meantime there are withdrawal symptoms that can last months and years. No other drug will be able to mitigate that process. The longer you were taking the drug, the slower it will be to recover, and the stronger the system will react to cold turkey or fast tapers. It might help to know what dose you came off of.
I will warn you, too, that severe anxiety, depression and insomnia are withdrawal effects, often described as being at a level unlike anything the patient had ever experienced before or during the drug-taking. Doctors and patients alke mistaken this as relapse, and meds are prescribed yet again. There are folks, though, who have taken these drugs for pain only, and end up with depression and anxiety in withdrawal though they never had those symptoms before.
I've "talked" your ear off enough.