Hi, for several years now I have had these bug bite like bumps mostly just on my legs (until recently now also on my torso). They look like a msoquito bite and they itch. But then they sort of fade to a "c" shape within a couple of days. Then after they fade away completely, usually within 5 days or so they may leave a round shape into my skin that you can still see that doesnt seem to go away. It doesnt really bother me much but I am curious as to what it could be - doesnt seem to fit anything that I can find online.