HELP! I can't walk into our rv bathroom without having to spray for the bugs first! don't know where they're coming from: the ceiling vent, around the toilet, or the drains. i've bug bombed the rv, didn't help much. they look about the size of big fruit flies. no where else in the rig, not in the kitchen or living room. i spray bug spray around the toilet and inside to be able to gain entrance. they first arrived in weslaco, tx, and now we're in dickinson, tx near galveston. any ideas on what they are, and how to get rid of them?