I know exactly the pain and location you are talking about. It could also be some fibromyalgia. I suffer from psoriatic arthritis ,osteoarthritis and fibromyalgia, and there are times when my clothes hurt, and bras, forget it! i have purchased hanes comfort bras and they seem to help as far as soft and comfy. But occasionally even they feel like a tournaquet, i can barely take a breath without pain and thats when i wear a loose cami. Days when my pain level is up is a good day to stay home and pamper oneself
Hang in there.
Another thing i found helps me is my thermapaq, purchased at walmart. heat it up in microwave and lean against it anytime i'm having pain in that area.