Help, I have unidentified bug bites!?!

I can't figure out what is biting me. I keep getting bite, it happened at the same time last year too. I was thinking bed bugs but my boyfriend hasn't been bitten once, so then I was thinking flees because they can be picky eaters. I don't see flees jumping around though. The symptoms are very similar to flees, slightly raised hard bumps and intensely itchy! It's not scabies because I haven't been bitten once in between my toes or fingers. Most bites are on my legs but I just got 3 new ones on my arms. If it is flees how come I can't see them.? I have a cat who goes outside a lot but she doesn't ich while I see her inside the house. What other bugs could it be.?Health Question & Answer

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