Post covid flair up monthly

I got covid in October 2021 and had my first vaccine January 1rst this is when symptoms started have I now have dystolic heart failure on one side and congestive heart failure on the other. I also have some shortness of breath, fatigue and brain fog i can deal with this but If I do too much I get a flare up with extreme fatigue body aches, not feeling good, and worsening brain fog. Does anyone have this? I did covid for the second time in May not mild either. Since then I feel like things have gotten worse and I have depression but feel that is worse also so my Dr upped my med after being on the same dose for years. I feel like I was given a life sentence of this with no hope in sight...