Mouth problems after oral sex! Help?

Hey guys. I had unprotected oral sex about two months ago-lasted about an hour, a small amount of precum but no ejaculation. Either a day or two afterwards I developed a weird mouth feeling- my mouth and tongue had a numb and dry feeling at the same time. Not exactly numb, but I didn't have the usual taste I do in my mouth and eating food tasted and felt different. I also developed a little bit of a sore throat, accompanied by body aches and headaches. I got tested for all STDs and everything came back negative, but because I couldn't figure out what else it could be, I tested multiple times, thinking something may have been wrong with the results. Again, negative. I was diagnosed with HPV in the past so I began worrying about that right around the same time, and then moved on to worrying about HIV--needless to say I have been pretty stressed. I have been reading on these forums a lot about oral sex and HIV- my risk is basically zero with oral sex right? Even if I had a few minor scratches or cuts in my mouth from biting myself by chewing? I tested 7 weeks after the exposure with a negative-is that conclusive?

Note: I have also had all blood tests run and throat swabs done, and everything has come back negative (this includes mono, strep, EBV, etc.). I have been to an ENT specialist: he said my throat looked a little irritated, and put me on medication for acid reflux. Another doctor also suggest Mucinex.

     The closest thing I have been able to come up with to what it might be is burning mouth syndrome. I think I had it before last year (I was also stressed out about sex and weird responses from it and stress, depression, and anxiety are are listed as causes- my primary doctor suggested it), but my mouth felt a bit different than it does now. I also do not remember how I ended up getting over it- I tried different mouth products and I think I stopped stressing so much. I feel like I cannot de-stress now though- every feeling of pain in my throat or body aches makes me stress over it, and I have a ton of schoolwork which I have been doing poorly on because I cannot concentrate. I've been having really bad bouts of depression and have called the suicide hotline a few times- sometimes the pressure just hits me all at once. I have been talking with friends about it, but I feel alone--I cannot go to my parents about it because it would just stress them out more, which would stress me out more, especially when so far I havent been able to find a solution on my own. I understand their dislike of me being sexually active, but they can be harsh in their judgments and will try to control my actions like a little child. I am 19 so I have the legal independence to do health related things on my own- its just really discouraging because they are so uptight about it, but they insist that I tell them about my sex life.

Anyway, I rambled here a little. My main questions are: 1) Could this be BMS? Is there any way I could get tested for BMS? 2) If this is BMS, does anyone know any methods I could follow to lessen the physical effects? 3) Could I just have a random, unknown virus from the oral sex that cannot be identified and I just have to let it run its course?
4) Is there any way this could be HIV, even after the negative results? 5) What can I do to control my depression and its effects on my life? 6) Do you think keeping this to myself and not telling my parents is the best course of action?
I know I have asked a lot of different questions spanning different topics, but I'd be really grateful if someone could address any of these questions. Thanks a bunch!

[NOHARD]

Hi BKT, Have you thought of being retested in an STD/GUM Clinic, the staff in these may be able to put a finger on your problem, dont forget this is there one field that they work in.
Good Luck

[BKT707]

What is a GUM Clinic? I've been tested at the local health department twice, once at my gynocologist's, and once at another health clinic.

[NOHARD]

Hi BKT, this should answer you question.
GUM stands for Genitourinary Medicine. This is a wider term that refers to the treatment of conditions relating to the reproductive system, and extends to gynaecology and andrology. Whilst sexual health obviously represents a large part of  Genitourinary Medicine, it could be argued that it is misleading to describe a Sexual Health clinic as a GUM Clinic. However the term seems to have entered popular use.
Do hope this helps you.
Good Luck