Any idea what is wrong with me?

could be iron deficiency. i had everything but the fever thing plus thin nail beds and some other stuff. The headaches are really what led to me being diagnosed though. because i literally had a headache every day for a month straight. The doctor didn't think to check for iron levels until i started listing off everything i could think of and all of the symptoms combined gave her the diagnosis. so make sure that you write down everything that's going on with you and tell your doc about all of it because that can make the difference.