So a few days ago I was sleeping and woke up with a mosquito like bite on my arm well that's what I thought it was then I figured it was a spider bite because it started itching really bad then then these past 3 days outta nowhere I'm completely started breaking out in hives all over my arms and hands and idk where the heck it's coming from every second I look up they keep appearing and itching like crazy they hurt too ! I made a doctors appt but this has never happened before and I'm not allergic to ANYTHING and I haven't had any other symptoms but just these hives  it just randomly happened .. It's so strange has anyone else had this happen before? I'm curious