I received so many mosquito bites on my feet, approx 50 on each foot, that I think I had an allergic reaction. (I was in the woods and bug spray did not hold them off) Both feet swelled, skin became tight, the itching was soooo intense, I had sharp nerve pains, was very agitated, felt a heavy chest, and did not sleep for 48 hours. I tried every remedy: calamine lotion, rubbing alcohol, cortisone cream, vicks vaporub, cider vinegar, benadryl....all to no avail. I have polymorphous light syndrome and this felt like the same thing. Could this be possible to have a severe reaction to just a mosquito??