Should I Retest Again for HIV @ 6th Month....?

I am 24 yrs old from THailand.....First of all, I am so sorry about my english communication....some words or sentenses may seen weird...

Last 3 months, I had 1-2 minutes anal unprotected sex ,I am gay male-recepiption.....
Then I am so so worry because I ve cough for a week...
My blood check history are
- 6 weeks : Anti HIV I/II Stat =Non Reative by Eclia (Sens 100% , Spec 99.1%)
- 8 weeks : Anti HIV Immunochromonography = Non Reactive
- 72 Days (I don't know what kind of test they used) but the result cam NEGATIVE
- 75 Days "HIV PCR TEST" = Negative by nested
- 12 Weeks : Anti HIV I/II Stat =Non Reative by Eclia (Sens 100% , Spec 99.1%)

However, I had coughed for 2 week (without having fever during 80th day after exposure) The doctor told me that I was infected with some kind of virus according to less relaxation and anxity(Sleep Late...woke up early..which all are actially true) The cough gone within 2 weeks...Will this be because of HIV?

Furthermore, I was so worried ....I really don't want to wait till 6 months.....I cried everyday, can't sleep everyday.....
so I called my partner who I previously had sex with to have blood check @ 87 -90 days after exposure (Which he claimed that the last time he had unprotect sex was very long, longer than 3 months) THe result is ...: Anti HIV I/II Stat =Non Reative by Eclia (Sens 100% , Spec 99.1%)

Please help me....
1. Is ECLIA ok to check for HIV ? I called blood test lab...The tester told me that they used ELISA GEN 4th to do blood test..She also told me that ECLIA is the same as ELISA but use a different detection (.Electrochemiluminescence Immunoassay) Which I didn't understand much in tecnical term and usage. She also told me don't come again @ 6th moth because both of us was not infected....But I am here to ask a lot of very nice and kind expert...PLease help me!
2 Do I have to recheck again at 6 months.....It is torturing to wait more 3 month to have again at 6th mnth.
3.. Can I goback to normal life now? Should I stop worrying? Should I stop crying?

Best wish to all of you and Thank you in advance
MIC