i hallucinated gnats :/

It happened when I moved to a new apartment. Now and then, just as I woke inbetween dreams, I'd see a swarm of gnats above my head. It would always startle me and I'd try to swat at them. Sometimes they just disappear. Other times they fly away. Sometimes they are perched on the wall, another time they were all over my night stand. Sometimes they were just black fuzzy dots. Other times they were realistic and I thought I had a bug problem (but there was never anything in the day).

It really creeped me out, I didn't understand why suddenly I was hallucinating gnats - still don't. I've moved out of that apartment and it hasn't happened since.