31 year old female.  Dull, achy pain in left breast/chest area.  Have asked my pcp and had both an ekg and stress test done.  BotChatDoctore back perfect.  Still having dull pain.  Mostly when Im sitting, relaxed.  Husband thinks its heartburn....I cant be sure.
Thanks for your question on Chat Doctor. I can understand your concern. Yes possibility of either musculoskeletal pain or heart burn (acute gastritis) is more likely in your case. So better to avoid movements causing pain. Avoid heavyweight lifting and strenuous exercise. Avoid bad postures in sleep. Avoid hot and spicy food. Avoid large meals, instead take frequent small meals. Start proton pump inhibitors and prokinetic Chat Doctor.  Take painkiller and muscle relaxant