I've never been stung by a bee before that I know of, so I had no idea if I was allergic. Supposedly even tests by an allergist aren't all that accurate, so you're best off just waiting until you get stung to see.
If you get stung on the forehead and your eyelid swells up, for example, that's considered a local reaction. If you get stung on the foot and your eyelid swells up, that's a systemic reaction, and you'd better carry an epi-pen after that.
Looks like I fall into the first category, minus the eyelid-swelling, happily. Also the category of should-have-known-better. I went to take more pictures in front of the hive, but I didn't follow my own rule of always wearing a hat. The bees saw my dark hair looming in front of their door and bzzzt! one nailed me, right next to the scar I got from falling off my bike when I was 7.
Frankly, it didn't hurt all that much. I scraped the stinger off with the blade of a knife (to avoid squeezing more poison in) and put a dab of bleach on the spot. An hour later, there's a bump about the size of a mosquito bite, if that, and it doesn't feel like anything.
So that's good news! Hooray!