Thanks, Harald. I broke down and sprayed some bug repellent in the bathroom. I hate doing that because I don't want Niki around the chemicals, but I also don't want these things getting into her lungs and such. I figure that I'll give the spray until tonight, see if it worked, then go in and clean to get rid of the chemicals.
I also don't like killing insects, but until/unless I know that they aren't a thread to Niki, I'm going to keep at it.