A few years back I got bitten by mosquitoes while I was fishing in a small stagnant pond, and there must have been something in the water because my arms swelled up so much my tattoos stretched out of shape and I could feel the fluid moving around when I moved them. I've never had a problem with bees and wasps though. Never been stung by one, and if one comes in a room I'm in I just point at the open window and tell it to get out.