About a month ago, I notice little red, pin sized dots on my lower legs. it actually looks like someone took a red ink pin and tried to color on me. they do not hurt, itch or burn . well, they went away, we went camping, so i was thinking it was a bug bite , but no one else in my family had them..........well, they came back, noticed them, yesterday and because of the rain, I have not been out side or camping......any idea?