I had Covid back in August of last year. I too had shortness of breath for quite a while with chest pain and other aches and pains that were not normal. My heart rate was high for 3 months. I am so sorry that you are having these issues. I found that Covid "attacks" the areas that you are weak in and ramps up any inflammation that you already had. It took me a few months to get past the extreme fatigue and I am still battling an issue from Covid that I cannot get answers too (8 months later). Sometimes, these issues just have to run their course and wear themselves out. Covid is brutal. I am praying for you. God Bless You!