I need opinions...

Alright, I decided to reach out on here to see if anyone can help me out. Back in February, I had pain in the middle of my chest. It felt like I couldn’t breathe sometimes and it felt tight. I went in to the dr and she told me that I had costochondritis, prescribed me a cream to help with the pain, and said I should be better in a few weeks. It’s May now, and every day since then I’ve dealt with pain. Some days I notice it and some days it doesn’t happen at all. It’s never in the same spot as before and it goes to other parts of my chest and sometimes the bottoms and sides of my breasts, or even the area kinda by my upper armpit. Tbh my whole chest area just feels tender. The pain isn’t constant, it just happens every so often. I’ve dealt with this every day for months now and the more it happens the more it freaks me out. I’d make an appt with my doc but with everything going on with covid, that’s the last place I wanna be right now. Does anyone have any advice? Any opinions? Anything helps. I’m 22, not sure if my age will help with anything. TIA