Wow! You've had quite a year so far! How scary that must have been for you. We may never know all the effects of Covid and the aftermath of its course. I hope you are doing better now, and that the sleeplessness issue can be addressed. Not being able to sleep is awful...I know people have all sorts of different things that work for them, but not all things work for all people. For some melatonin helps. I did not like it at all and won't take it. I have tried Mary Ruth's liquid nighttime multi-mineral product. It does something, but I can't really say what. That sounds strange, but it works on some level. It's a bit pricey even on Amazon.
Hopefully either the Camzyos reps or your doctor can address your insomnia.