For about 2 months, I have been having swellings, ranging from extra large (baseball cut in half) to silver dollar size. They are unexplained, not painful, not itchy and resolve in 1-2 days. Within a week another swelling will appear, sometimes within a day. The swellings I have noticed (I am assuming there are some I have not noticed) in the order they appeared: a long swelling down my sternum curving slightly to the left; a dollar coin sized swelling on my lower spine; the top of my left foot, a very large swelling on my right shoulder; the back of my head at the base of my skull, to the left; repeated in the same spot on my head; repeated in the same spot on my back.
While they are not painful, I am getting pretty nervous about what their cause could be. Doctor is stumped. Help?!