Hate them too. I was stung for the first time three summers ago. I was walking up the back steps and a yellow jacket got me on the back of my calf. I haven't felt pain like that very often. Then it got itchy and then it turned to cellulitis. I ended up with a scar! The next summer while walking through the playground at my son's school I got stung between two toes by a honey bee that got stuck inside my Croc. That wasn't as awful BUT the spot where the yellow jacket had gotten me the year before swelled up again! Weird! And no, I'm not allergic! Just sensitive.
My son got stung 4 times a few weeks ago by bald faced hornets, which are related to yellow jackets. We couldn't find the nest. A week later one got him on the face. Poor kid, the next day his face was all swollen. That time we found their nest in the rhododendron bush he had been standing near. DH sprayed it then a few days later we took it apart. We found the queen, eggs, larvae and got to see the different colors of wood they used to build the paper nest. They had chewed on our garage and shed for sure.