I have very large, pendulous breasts (F cup) and aside from the usual pain in the shoulders, neck and back, I have noticed purple/pink areas that look like bruises that don't go away. Also, over night I noticed a blister develop that popped after showering, leaving an open sore that took weeks to heal and is now a purple scar. I was wondering what could possibly cause this and whether it's possible that I'm now experiencing circulation problems from my breasts. Thanks.