hi i had gone through your query and understand your concerns. i would come up with the possibility of VIRAL FEVER
may be the cause for your sufferings.
-in such cases tylenol
gives you temporary relief only.
i advise you taking Homeopathic
medicines gives safe and permanent cure for your viral fever complaints
consult your local homeopathic physician for correct diagnosis of the case and remedy to fit your complaints
I hope this is helpful for you, thank you