Unprotected sex 4 weeks ago, mild symptoms present

Hi Doctor,

I am a little concerned over the following issues and would like some help suggestions. I had sex with an escort 4 weeks ago during which the condom broke and I realized only after I finished. I was worried as hell and I asked her is she has got herself checked to which she said "she KNOWS she is not infected". Anyway, I got tested after 1 week of the incident which came back negative. Doctors called it the baseline test and asked me to come after 4 months due to the window period.
Although, I have not experienced any symptoms, but I started experiencing severe headache after week 3 of the incident. I took a headache medicine and it was gone but also I have been experiencing strained eye muscles and mild headache near the temples and back of my head (for 2 days after the severe headache) which I have never experienced before.
But, for information, I sometimes have severe headaches (maybe in every 6 months) and I just take the medicine and its gone. I am concerned about the strained eyes and mild headache.

All, I know is that HIV has this symptom of headache. My question is:
Q1: How long do these headaches stay in case it is an HIV related symptom?
Q2: If symptoms have appeared, can I go and get tested and if headache is due to HIV, then will it show in my blood report keeping in mind it is only 4th week.
Q3: Is there anyway, I can get tested before the window period?

Please help and suggest, I am scared and not able to concentrate on anything.. :'(

[boondock]

look you can't base if you have hiv off of symptoms.  headaches are caused but a lot of things.  my guess is that stress is causing your headaches. test after 3 months is conclusive.