Desperate for Answers: Covid After Effects?

Hi there! So I basically at this point am desperate to connect with someone with similar symptoms because no one can seem to figure out what’s wrong, or they think I’m just crazy! Had Covid sept 2021 was sick about 2 weeks felt pretty bad loss smell and taste bad headaches severe fatigue dizziness fever but still able to take care of my kids the entire time so not deathly sick. I am pretty healthy exercise regularly and workout. Was not vaccinated at this time. Thought I was recovered about week 3 but then started in October 2021 to get strange symptoms again, low grade fever on and off, terrible heartburn, joint pain and chronic fatigue. Felt like I had a something stuck in my throat for like a month but it was nothing. Symptoms went away after about a month then caught a cold the end of February. It caused a flare up in my body, fever on and off again, and weird throat sensation. Starting the third week in March I also started getting this very heavy/full feeling in my chest. Sometimes burning too which makes me think gerd/acid reflux bc it’s pretty bad at times. Currently having a ton of blood work done and my ANA is positive with levels at 37 normal range being 0-4. So also looking at a possible autoimmune, I see my pcp next week to discuss. Other symptoms included heart fluttering and palpitations, word a heart monitor for 2 weeks cardiologist said aside from some skipped beats and a run of SVT lasting 14 beats while exercising nothing looked concerning to her… but will follow up w a second echocardiogram to make sure there’s no fluid build up around the heart bc of the symptoms I’m having. My biggest issue right now is this constant chest tightness and pressure I feel all day everyday, aside from that I actually am feeling good but it’s so uncomfortable I can’t stand it… sometimes it’s a burning but most of the time a deep pressure and full filling. And no one seems to have any answers for me. The only thing that makes sense to me is after effects of Covid, I do know ppl that are experiencing same symptoms and from what I hear it can be a long haul symptom. It did get worse when I went outside today so i have been thinking possible asthma related but I do not have the coughing or wheezing and I have no trouble working out. But the tightness seemed to get worse when I went outside. At this point I have no idea what to think or do but I really wish someone could help me! If anyone can relate, please let me know!! Thanks for reading!!