My wife and met each other while she was living down south, so we started our lives together via long-distance relationship.
One late night, a couple months after we met, she called me to tell me that she was headed home after an evening out with friends. She also told me that she had gotten bitten on her foot by what she assumed was fire ants. I asked how she was, and she said that her foot had swelled up and that her face was starting to itch. She then mentioned that she was driving by a hospital and wondered whether she should check herself in (and then laughed about it). I told her emphatically YES, so she did.
5-10 minutes after she checked in, they took her into a room where she passed the F out. A shot of Benadryl brought her right back, but if she hadn't pulled into the hospital right then...