There was some very interesting studies posted on here that I found when searching about this kind of stuff. I wish I would have bookmarked it. What I gleaned from it was... allergic reactions are tricky devils and not to be fooled with. It's probably time to see a specialist and see what they think? Have an EpiPen on hand just in case at the very least.
I took a couple stings just on the hand side of my wrist and my hand swelled so bad that I could not close my fist. I did not have a "body" fever, but my hand was in the 102-103 degree range quite often. I iced it a lot and that seemed to help greatly. Of course your reaction seems indicative of a more full body response, which is something to take seriously.