Very Tired on 10/12/2010

Have not seen them, but have been bit repeatedly. I have no stains on the mattress, but I've seen the marked "ink drops" on my sheets. It's an old building with wood flooring (many cracks and crevices). I've called the landlord (Tri-Star Equities) and am waiting for a response. The last two weeks seemed to be when they started, with vengeance. I'm thinking someone below or above used a fogger or bomb, because my research shows that this is a quick infestation.