left stuff out, scared of hiv or herpes or something, ALREADY tested negative for any diseases detected with pee

[sp1992]

it is now 1/10/11 and on 11/26/10 i had did the dumbest thing ive ever done. i got drunk and i had unprotected sex with a girl with a bad reputation. Before anything, id like to say this was only my 3rd time ever having sex so i dont know the likelyhood of me contracting hiv. The day after and for a few days after i felt a tingle sensation in my penis but it went away. i didnt feel anything last month, i even forgot i did it. But, i was reminded of it and that the girl has a bad rep. a few days before new years eve, and this reminder caused me to think about it a little bit. I drank alot the weekend of new years, and soon started feeling burning in my penis, and whe peeing. also, it started itching down there, especially in the area between my butt and testicles. I began thinking about her having  an std alott and began getting stiff in my chest, groin, and neck area while playing basketball which scared me. IMPORTANT: that same night i was locked out of my house in the freezing cold for 2 hours. i began doing research and immediately concluded it is most likely chlamydia due to the burning when peeing. but i decided i was curious of hiv, and immediately noticed it said symptoms show up a month after on average with enlarged glands and headache(ive gotten a few headaches throughout december) and immediately got scared after reading that, i began being paranoid that i may have hiv and my chest tightness which after looking at where glands are, i figured is enlarged glands, it got worse the day after as i kept doing research and my anxiety of it rose, and i began feeling nausea, loss of apetite, tired, and pain in my stomach and in my liver area all along with the wierd tightness of my chest, neck area, and groin, and my body was hot ALL symptoms of hiv. the day after i went to the hospital and told them i had chest tightness and told them my penis was burning, and urinating burned. they tested for bacterial diseases, all NEGATIVE and the doctor said all the extra stuff was from anxiety. i felt so much relief, but couldnt help but notice my chest still felt tight and thoughts of the fact i didnt get blood tested began coming back and began being scared again and did more research and put a less in depth one of these(why im fully describing now) on yahoo answers, and answers i got back was i might have it and all this stuff, and immediately had a panic attack seconds after. and took xanax and it all calmed down, and told my dad the situation later that night and he made me feel relaxed after he talked to me and told me to relax im to young to suffer from so much anxiety and im bringing all of these symptoms to myself from it. i told him i would relax but wont have peace of mind til i get tested. since then i have been calm, still thinking of it, but not stressing as much, its still in the back of my head though. but i still have chest tightness or pains, i cant tell, and im gettin headaches. last night i also noticed my pubic hair and under arm hair gets dry and becomes white when its rubbed, which after doing research i discovered its the cause of the itchyness ive been feeling there. i also noticed my body turns easily red now when i scratch itchy areas after my shower mostly but all the time. i dont have a rash which is a hiv symptom but my arm is the area the itches the most, mainly after my shower.
quick notes ive determined though:
1. the itchy skin and dry hair all around can be from psoriasis, i have psoriasis on my scalp so i figure it spread
2. the exposure to the cold i had when i was locked out could cause this stuff
3. i havent had a fever only hot body, or rash, or underarm pain
4. since my pee still burns sometimes and is dark i decided to search yeast infection, and it matched my symptoms and i did a test to see my saliva in a clear glass that i saw online, and my spit dissapeared once, but looked like a spider web twice.
5. i got sick exactly 2 weeks after possible exposure
6. my whole body is itchy, specifically at night after a shower for the most part and little TINY red bumps are forming mostly on my back thought and around my neck, and a few on my right arm
7.dry skin on pubic area and underarms, becomes white and broken up only when rubbed, especially on testicles
8. scariest one: rectum itches, mostly after shower and/or after pooping, also it appeared white when i looked at it, this is scaring me the most because NOBODY has or ever will touch me back there cuz i only do females...but the fact that that is showing signs is making me feel as if im infected with something for sure.
Ive calmed down and not completely freaking out anymore and not suffering form tight glands really, but i cant tell if its symptoms wearing off or my anxiety wearing off, please help my symptoms are all over the place and im scared on  the inside although ive become prepared for the worst

im really scared for hiv, im only 18, please help, what do you think.

[tomMulligan]

6-8 weeks post exposure test result is a great indication of your status. 12 weeks is the conclusive result.

[mardam]

you have to test 3 months post exposure.

[sp1992]

meant its 1/12/11....sorry...i copy and pasted the first part