I am sorry to hear about this...unreal how things can turn health-wise. I have been dealing with post viral fatigue syndrome for a year. That is the name I was dx'd with because they could not figure anything else out. The only items I would suggest are hormone levels checked, and also adrenals. Those are areas I am getting some supplementation for as those tests were borderline low. I had all the blood work, spinal tap, MRI, urine, etc. Only cluprit was evidence of EBV that may have started this for me. Keep pressing on....you know your body better than anyone!!!
I am sorry you are going through all of this. I think you definitely need a good medical workup. Have you written down all your symptoms, when you get them, the severity of them and anything else you can think of, to tell your doctor. I am not sure what doctor you saw about your neck and inner nose but did he run any tests, do any follow up?
also sorry forgot to post this, this is really affecting my study habits/ everyday life. I also slur sometimes and blank out when I'm talking to some one. My eyes sometimes feel like theyre drying out when I get a little stressed or when I'm talking to someone. I also can't focus anymore with my eyes. :(
I also want to input that my recent visit to the doctors, he spotted that my neck is pretty swollen, I'm not sure if its the thyroid, tonsils or the lymph nodes, he told me that I might be developing a cold or something but I wasn't and I didn't. Also he told me that my inner nose is swollen.