Walt: It was "probably" the very soft tender location. Had you taken any anti-inflamatory agents, aspirin. ibuprofen, percoset, etc. in the 24-48 hours prior to the sting? Anti-inflamatory agents negate ones built up tolerance of sting trauma. Why not go out today, make a bee sting the end of your finger, and observe the results. If your arm swell, so an allergist and hospital today and be checked. I get stung on purpose once each day, even Christmas Day, to maintain by built up immunity (like getting a booster shot once a year for tetanus). Hence, if I do get 30-50 stings quickly, everything is OK. It helped tremendously when I worked with AHB in Brazil. My guess is you are OK, but it is better to inquire and maybe do a tiny self experiment. George Imirie