Two nights ago got bitten 9 times by what seems like two separate things, judging by distinct difference in size of bites (some are large like mosquito bites, some small red dots). Extremely itchy and burning that night, large white raised welts. Somehow it all but disappeared the next morning (yesterday), not itchy, not red, not raised. In the afternoon it came back. Today I ve had headache all day, got worse in afternoon, started having fever, chills, achy joints, very slight nausea, tingling of hands and feet, weakness, difficulty breathing. Took acetaminophen, helped reduce fever but dull headache remains. Now I have strong tingling in hands only, but am not cutting off circulation or lying in a way that promotes pins and needles sensations. What s going on?