My Room Has Been Invaded - Ant Explosion

What the f-ck! Ants all over my room, hundreds of them, all very tiny! They formed a line from the back porch door, through my kitchen, through my bedroom area and out the front door. I think my apartment became a detour for them. I swept them out the door 2 times tonight. I wonder if I left some food somewhere that they found. When I come back from Bangkok there might be 3 or 4 major ant highways completed and running at full capacity thru my apartment.