Bees or spiders

Does everyone remember a little over a year ago when Owen had that severe allergic reaction to something, he ended up in the ER but we never did figure out what he's allergic to? So, this has been on my mind a lot in the last year, especially since I've been told over and over again by various doctors that allergic reactions can get more severe everytime a person is exposed to that thing. Great, we don't know what the heck he's supposed to be avoiding! So, over the last year I've pretty much decided it's definately not a food. He eats the same exact foods he did that day and has never had a reaction to anything. So, foods are out. It has to be something he's not been exposed to in the past year, since he's not had another reaction. A couple days ago I was sitting in the car thinking about it and it hit me.... what about bees or spiders? If Owen had gotten stung/bitten he never would have told me or complained about it (since he doesn't feel pain like you or I do). It would make sense. When it happened we were driving to Michigan from Kentucky. When we left Kentucky he was fine. When we stopped in Ohio to eat dinner and change into his pj's he was fine. When we got to Michigan his face was fine, but I never took off his pj's so I have no idea if he had any hives on his body or not. By morning he was COVERED in hives and his face was swelling. If something had bit/stung him during the night, I never would have known. By morning he was in the middle of a severe allergic reaction.

So, that's my best guess. The reason it's so important is now that he's in school he needs an "emergency kit", since he has had an allergic reaction to something. So he's got a kit at school with his benedryl and an epi-pen jr, but it would be sooo much easier for his teacher if we knew what he was allergic to!

We are considering going back to the allergist and getting more testing done, focusing on bees/spiders and other environmental things. I hate to see him get pricked again (the testing is not fun at all), but if it helps save his life, by knowing what he's allergic to, it'll be worth it.