Invisible bug problems

No bugs are invisible, so the key may be in determining what they are based on what the bites look like.

Where, exactly, are you when the bites occur? If indoors at a particular location, it could be bedbugs or fleas.

If outdoors, it could be a dozen different critters.

Clarify where you are when it happens (include city and state) and we'll try to help you further.

If you can include a picture of what a bite looks like, then that would be helpful too.