Just lately about every third or fourth morning when I wake up I have a new what appears to be a bug bite somewhere on my arms and hands and I ve never been able to find any indication of any kind of bug in my room. These bites really just start out feeling like a rough patch of skin but they itch like crazy. By the next day there a whole group of little tiny bumps about the size of a dime all together and they itch really badly for a couple of days then the skin kind of puffs up a little bit and there is a definite center that looks like a bug bite. and eventually they start going away but it takes a really long time for them to heal. I ve had them only on my upper body, mostly my arms and hands and itching is really bad. I researched bedbugs and I cannot find any evidence whatsoever of any kind of bug anywhere. About the time one begins to go away another one happens. Any ideas?