What is this smallish bug?

[vamplord32]

I have a bug in my house that is very very small but visible and is moving/located on my office/closet/bedside table and even on my bed. I think it bites me a lot and cause me itching and in some cases red rushes. It's active during the day and I see it moving.

I can't take a better photo of it

Here it is:

[kevinkk]

just guessing- you have more than 1 creepy crawly, whatever those pictures of the grouped spots are might be excrement from the animal, which might be a bedbug.