Household bugs? i think they're coming in from the window.. they are VERY small. small meaning...

i think they're coming in from the window..
they are VERY small.
small meaning there be hundreds of them on the counter top.. but i couldn't tell until i wiped down the counters after looked at the paper towel. most of them are in the kitchen but i hold found some in the bathroom, and on the window sill's within the bedroom.

they don't seem like they bite, i own had them on my hands (from cleaning/killing them) and i am pretty sure they dont. They are circular and their antenna are fuzzy looking.

please assist. they're driving me insane
Answers:    they might be those crazy ants.I had something happen to me resembling that,there were hundreds of them on my nightstand.Found out they be called crazy ants and came from a lighting fixture contained by my bedroom.I sprayed the heck outta my bedroom with bug spray and they went away never to return.I also have this issue with crazy ants in my saloon,I had no food or drinks in the sports car and it was very verbs but one morning I went to get contained by the car and there be thousands of these little black round looking ants with antenna's that were fuzzy looking.someone I know who does pest control say it's a problem in the south they just 'show up' beside no real place to be or no real chore lol.