I have small pimples in different parts of my body, they come and go, but when they are there they really hurt me, i can't even sleep not to put pressure on them, they are really small with pink color and a pink circle around each one, the largest one i had, in order to get relieved i burst it and it contained clotted blood, or like blood and fatty fluid, so what is this? I don't even know which doctor i should see??