What is your doctor thinking? Is this an HIV Specialist? Are you multi drug resistant?
You say your combo is
Combivir : which is AZT and 3TC
Truvada : which is Viread and Emtriva (which is almost identical to 3TC and should not be taken together)
Viread : which is already in the Truvada!
Prezista : which is a PI that MUST be taken with Norvir which you aren't on!