I have been getting bites around my ankles off and on for about a year now. In the morning when I get up sometimes I will notice a red raised bump on my ankle area that gets extremely itchy. Sometimes I will not notice a bite until later in the day. Sometimes I will have more than one bite in the area. I have 2 indoor cats who have been inspected for fleas and have found nothing. I used to have a bird. I do have a hamster in my bedroom. The reason I dont think these are chigger bites is because I have had them in the winter time also. I had a feather bed under my sheets that I removed and also a down comforter that I removed from my bed. I have taken my bed apart and have never seen a thing. No bed bugs, nothing. These bites only occur at or near my ankle areas. Sometimes I feel like something is crawling on me but I never see anything. Please help! I have no clue whats biting me!! My son lives with me and he has no bites on his ankles.