two things are confusing me.

I started a torrent no where else on the site, Joe Gage Closed Set, and it shows that it has been snatched 31 times.  However, in my profile, I have 0 upload credit.  Certainly I should at least get the credit for the first upload, and one would think of the 31 other snatches, I would have had something to do with it.

Similarly I seeded, The Guy Site - Round Robin Fuckin Studs.  The site shows 5 leachers (and I know for certain that no one has taken a full upload from me), yet my bittorent (Vuze) only shows one in the swarm.  And no upload credit.  How does this work?

I am a total top, but was the middle in a spit roast once back in Atlanta.  May gay softball team went there for a tourney, and while partying the night before, I met a guy at a bar and we were definitely into each other.  Then he said the dreaded words - of course, it would have to be a three way with his partner.  This is always the kiss of death - the partner is always butt fuck ugly.  But not in this case!  He was even better looking!

We get to their house, and eventually I am fucking one of them, and I feel the other start playing with my ass.  I normally would say no, but it seemed innocent enough.  And then he was fingering me, and eating me while I fucked his lover.  Then he came to mount, thank god he wasn't too big, and it happened.  And OMG it was great.  I controlled the fucking by my motion and wow.  I was completely surprised, I usually don't even like getting fucked.  It was one wonderful introduction to the hospitality of Hotlanta.

I don't want you to go into a death/shame spiral.  You have engaged in risky behavior, but it is unlikely you were infected.  However, let this serve as a check in the future.

Even 13 years ago, we knew that the risk of transmission of HIV from oral contact without ejaculation, is considered extremely, extremely low.  See http://hivinsite.ucsf.edu/InSite?page=pr-rr-05  While ejaculation in the mouth increases this risk, even the CDC states that this risk can be diminished by spitting it out quickly.  So you made the right decision there.  As for the actual possibility of transmission by having ejaculate in your mouth, it is still highly controversial.  While of course it's theoretically possible, and there have been claims of such transmission in reputable studies, further evaluation of claims of "oral only" transmission have been held to be dubious because of problems in self reporting.  Also, there needs to be co-factors such as open sores or cuts in the mouth.  The mucus membranes are known to be highly resistant to HIV transmission (though other areas further down the throat are not as resistant).

The reason that a condom is not used after its expiration date is that the lubrication degrades and there is a much higher incidence of breakage through normal use.  If the condom came off your partner intact, you have very little to worry about.  Latex does not have increased porosity with time.

I don't want to minimize the risks you exposed yourself to, but we also must add a dose of reality.  One time exposure to HIV (anal or vaginal) seems to have a transmission risk of 1.4%, (or about 1 in 65 people that has unprotected anal sex with an HIV positive man will seroconvert).  http://www.catie.ca/en/pif/summer-2012/putting-number-it-risk-exposure-hiv  Oral transmission, again, is considered to be much lower and harder.  So your likelihood of transmission from this one exposure is probably low.

Do get a test to assure yourself.  Do stop the drugs - the increase the likelihood of transmission many fold - not only through the lessening of inhibitions, but also they seem to be a chemical co-factor in increasing transmission.  Recognize that you're always at danger of contracting STD in any unprotected situation.  But also realize that there are risks in every part of life.  Balance your risk profile wisely to enjoy your life without racking yourself with nerves over the risk.