Welcome to HCM.
I WOULD LIKE TO KNOW your age, whether you are a diabetic or any other illness and taking any drugs.
and some other drugs are likely to produce similar symptoms as you described. If you have not any other reasons ruled out by your Physician for the present symptoms, You can go for the most confirmatory tests for HIV
like Western blot or HIV DNA PCR.
Moreover symptoms described by you in HIV is likely to occur very late and not within 2-3 years.
So feel comfortable.
Get your doubts cleared with more test and be happy.