Hi thanks for your question.you had unprotected sex on august 18th with a person ,whom you suspect is HIV positive ,and today is October 5th that means more than one and half months have passed.
you started PEP (post exposure prophylaxis) after 61 hours ,that is good as you have take as earlier as possible but with in 72 hours of exposure and as per guide lines you should have continued it for 28 days.your not clear here in your question, what does mean first for 2 weeks and then for 4 weeks.Do you mean you have taken for a period of 6 weeks regularly or first for 2 week then gap and then for four week?If latter is the condition,then you didn't got any prophylaxis.The symptoms your mentioning are that of initial HIV infection which mean your sero converting.
Though only 47 days have passed and your in widow period ( PERIOD DURING WHICH ANTI BODIES TO HIV DON'T APPEAR IN BLOOD )you can still get your self tested by RNA
test which detects the HIV virus rather than antibodies
and is positive only after11 days in case of HIV infection.
If HIV test
come positive further management can be started.
hope i answered your question