Am i having aids related dementia?

I had an exposure 8 years back. I tested this year in the month of july and september. I had three tests done. A tridot , western blot and pcr hiv 1 rna. All the three were negative. However i was on medications when i took these tests(not hiv meds) . meds like flucanozole sompraz d40 before pcr rna, Probiotics before western blot and meds for viral fever 48 hrs before tridot. Could have these meds affected my tests and made them false negative? Im having persistent symptoms of vision problems , loss of appetite , tremors and a lot of cognition problems. I cant understand memes and other mathematical problems. Should i test for hiv again? Or is my cognitive declination and other physical symptoms being caused by psychosomatic factors?