This never was an HIV situation. Masturbation mutual or otherwise is not a vector of HIV transmission.
Furthermore, as your conclusive, yet an unnecessary, 7 weeks HIV test demonstrate, you are not HIV positive.
You can let it go completely.
Remember to use a condom everytime you have intercourse with a partner and you will be fine where HIV is concerned. Beware of alcool and sex next time :)
Thanks for your comments. The protected sex bit didn't give me to many worries as you can put a statistical number to it and feel confident of the low risk. But, the hand job with tear and vaginal secreations, there isn't anything on so I was panicky. The drunken session with the sex worker in Germany wasn't too pleasent either. Fortunately, it was a bit too 'clinical' so she was clearly protecting herself from any risk. The thought of which makes me feel a little better. Plus, prostitution is legal over there requiring regisration and regular testing. I read an article about a job centre over there sending a women, who had been out of work for a while, for a job as a prostitute. Since, they went legal it has become just a job. Does it sound like I'm still trying to convince myself that I'm fine?
Protected sex is not low risk, it is NO risk.
You should not be trying to convince yourself that you are fine, your negative result, after your non-risk encounter, does that for you conclusively.
I guess you are experiencing a guilt / anxiety trip due to your sexual behavior...well that's no big deal and you are not alone. But I would suggest that if you can't handle the pressure, change your behaviour or go and educate yourself about HIV and all other std (which are a million times easier to catch for some).
But for now, you are fine !