hiv combo test relayblity

[mewal2007]

hi doctor
i am so concerned with my swollen lymph nod on my neck which i have never had in my life before, even thogh i have had  an hiv  combo after 35 days of exposure. my questions are
1.why are there different advices out there about the window period of hiv  3 month and 28 days while hiv is the same why are the experts and guedlines of countries deferent ?
2..as the combo test does not detect antigen for hiv 2 and some people can take more than 4 weeks to make antibody how can we say the combo is 99.89% conclusive after 28 days?
3.i made thise combo test in norway is it the same like the combo test in uk ? and they told me it is not conclusive here in norway.
please please i am so so so so so worried i am not even sleeping .i have stoped even tolking to my girl friend untill i know that i am 100% negetive,

[mewal2007]

I realy appriciat for your time and the kind wordes to make me feel normal again.
THANK YOU SO MUCH.  I am gon have to work on my self from the answers You give me . That was very helpfull

[HowardH]

"how is hiv swollen lymph node different from the other?" HIV causes multiple inflamed nodes all over the body. You would have lumps in the neck (both sides), under the jaw, armpits, groin, and maybe other places. (Do NOT start poking yourself in those areas to look for them. If they aren't obvious already, then they are not abnormal.)

1) HIV2 is only being seen in people in parts of west Africa or who have had sex with partners there.

2) Yes, I am sure.

[mewal2007]

owww i am so happy to see your answers. thank you so much. please excuse my ignorance about every thing.
how is hiv swollen lymph node different from the other?  it has been difficult to believe the test because  of the lymph nod i have on my neck.  
the node swoll out 1 day before i took the test that is on the 34th day.
i am not daunting the combo hiv test mastion here in norway nor the experts. i am just confused with the 3 month and the 28 day window period in norway and uk.  there are no hiv specialist aroung where i live. it is a long way to oslo plus i dont have there adress
1- can i be from the rare hiv 2 victimes. becouse of the late IRS i am having now. since hiv 2 is mild virus.
2- are you realy sure that i am ok. i am missing my girl friend can i meet her?
please i will not bother you any more just thise time give me detail answer. pls take it like you are saving my life. and you realy are

[HowardH]

HIV never causes a single enlarged lymph node. You have some sort of localized infection. Also, the blood test ALWAYS is positive within a few days of onset of HIV symptoms. If your node were due to HIV, your test would be positive for sure.

1) There is little disagreement among experts about test reliability. Stick with professional websites. Four weeks is reliable for DUO, 6-8 weeks for the antibody-only tests.

2) "how can we say the combo is 99.89% conclusive after 28 days?" Because HIV2 is so rare. There are very few cases in industrialized countries.

3) As far as I know, the tests are the same in all industrialized countries. You might have found a particular clinic or doctor who considers the test not definitive, but most experts would not agree with that.

In any case, this is a community forum and most participants are nonprofessionals. Your own doctors probably is more expert than we are. You should ask him or her the same questions. In the meantime, settle down and stop worrying.  You can be sure you don't have HIV.