Update:I'm at the ER. Do I go to ER?

Goodness, that's scary. I had an allergic reaction quite a while ago that made my eyes swell almost fully shut. My eyelids were swelled out further than my eyebrows. It was so scary and the drs took it very seriously. The swelling went down a little with the shot and start of steroids  but it took almost two full weeks for my eyes to look mostly normal and feel ok. I had subsequent swelling every once in a while but I never did find out what caused it.
Please don't hesitate to get to the ER asap cuz your life might depend on it. Good luck with the testing and hope you feel better soon.