I've been getting these small pimple like bumps on my skin, usually only two or three at a time. Its happened twice in a month. Last night I noticed one about two inches below my left breast. I didnt mess with it, and went to bed. When I woke up this morning, there was a fairly large blister in the same exact spot. And there are also two more smaller blisters near my belly button. Never had this problem before, and I was curious as to what It may be. Is there anything you could tell me?