I have hives while sick?

I've had basically the exact same thing happen to me a few years ago. I remember i was just fine too, i was working on a report for school and all of a sudden i couldn't move off of the couch cuz my head was pounding so hard everytime i would move. I also got hives, and so my mom took me to Urgent care because i never had them before and it ended up that i had laryngitis. I would have the haves every time that my fever was up. And that might be whats happening to you if they keep appearing and then going away. Because the same thing happened to me. I was completely better in about a week i think. So hang in there, it should stop soon.