Chest pain moving around when Jogging and inactive?

I’m 24 and have no history of heart issues in my family, I’ve been to the doctors and had my cholesterol checked and a ecg done all of which came back normal. I’m also going back tomorrow as I’m still worried about this, the pain started on the right side of my chest when I was out walking at a fast pace as I just started exercising again recently, anyway since then I tried jogging and the pain seems to still be there after I finish jogging I sometimes have to burp when I get the pain also and it’s moving around like I said last night it was on the left side and now I’m just scared to exercise tbh. What are the chances of this being an issue with my heart I’m very worried about this as now it’s on the left side what could this be I mean I’ve wondered since it started if it’s just anxiety but I’m not sure I did suffer from health anxiety for quite a few years but it’s got a lot better now but sometimes it catches me out like now ...