Panicking I may have HIV

About three months ago I topped a male anally without protection who "said" they were clean. However, it was very brief, only for about thirty seconds, and I didn't penetrate very deeply, either. I am circumcised. I've looked up the risk and a lot of numbers are saying 1 out of 909 (per exposure). It was only this one encounter. One part of me feels this I put myself at a low risk and the other part of me cannot stop worrying about it. I have a feeling this person sleeps around and I don't think they understand the risk like I do now. I know the best answer is to always get tested, and I will, but I can't for a few weeks. There is certainly no guarantee the partner I did this with has HIV. I haven't shown any symptoms of HIV even though I know some people don't show symptoms. The issue is I can't clearly gauge how much I should be freaking out and it is interfering with my day to day life. I think I may be experiencing some sort of anxiety problem, because I relive the same worrying thoughts and google page after page about HIV statistics that continually make me worrisome.

It is better you get tested at the earliest, because your anxiety will remain till then. There is no point freaking out, since you may not be infected after all!