Thanks you so much for your replies chica and Fredo.
I'm quoting a patent I found about this purine derivative:
"The compounds of the invention are useful for treatment of microbial infections, for treatment of tumours or for other indications described below. Microbial infections treatable by the compounds of this invention include viruses, parasites, yeast and fungi, but it is believed that the compounds are most effective against viruses, which constitutes the preferred utility. Exemplary viral infections include infections caused by DNA or RNA viruses including herpesviruses (herpes simplex virus type 1 (HSV-1), HSV-2, varicella zoster virus (VZV), Epstein-Barr virus (EBV), cytomegalovirus (CMV), human herpesvirus type 6 (HHV-6), HHV-7, HHV-8, bovine herpesvirus type 1, equine herpesvirus type 1, papillomaviruses (HPV types 1-55, including carcinogenic HPV), flaviviruses (including yellow fever virus, African swine fever virus and Japanese encephalitis virus), togaviruses (including Venezuelan equine encephalomyelitis virus), influenza viruses (types A-C), retroviruses (HIV-1, HIV-2, HTLV-I, HTLV-II, SIV, FeLV, FIV, MoMSV), adenoviruses (types 1-8), poxyiruses (vaccinia virus), enteroviruses (poliovirus types 1-3, Coxsackie, hepatitis A virus, and ECHO virus), gastroenteritis viruses (Norwalk viruses, rotaviruses), hantaviruses (Hantaan virus), polyomavirus, papovaviruses, rhinoviruses, parainfluenza virus types 1-4, rabies virus, respiratory synctial virus (RSV), hepatitis viruses A, B, C and E, and the like."
I am no health specialist but this certainly sounds good. This is the link:http://www.freepatentsonline.com/y2003/0187261.html
Unfortunately I haven't found any webpage which clearly discuss this thing (medicine ?). Only obscure patents.. I guess I need to find a real researcher to get real feedback about this. Not so easy. Oh well.
chica - thank you for your suggestions. I will try to find some private clinic who is willing to do this test you mention. The public clinics I've been to don't have this - all they could offer is trying to raise yeast on a brush that was swabbed on my tongue, but the result was negative.
I've actually began doing yoga after this thing began.. I found it really helpful! good idea ! I tried changing my diet too. It's hard to tell, but I think it did have a positive effect on me. I'll stick to it.
Thanks again and take care !