They came in from outside. Might be carpet beetles or one of the pantry invaders.
These little tiny bugs are so annoying. They seem to come ever summer. I did have a gerbil and 6 hamster and 3 rats. But haven't been to bad as this year when I have the rats. There so creepy and I'm have huge phobia over bugs crawling on me at night. These bugs seem to e black but sometimes brown. There oval and have about maybe 4-6 legs. There was a lot. I killed maybe about 30 just 2 hours ago. They seem to fly a lil and try always hang by my windows and by my computer. There also only in my room. I really need to know what these are and is there anyway I can get rid if them?