Anxiety at parties.. Spiking my drink

Hi my name is Chris and this is my first post on this website.
         A couple months ago I was at my local bar, when I was seen by a enemy i had back in high school, we had got into lots of fights, both lost and won. We had not talked in years so it was wierd to see him. so he comes up to me to make good terms, and I we were all cool and stuff and offered to by me a shot. so i go to the bathroom and come back and take the shot of Jack. I go sit down with my buddies and realize that maybe this guy had spiked my shot with something and wanted to get back at me.
In the long end nothing strange happened to me that night but it completly ruined it with anxiety and with everything else now, im always afraid someone spit in my food, and i cant leave a drink anywhere and if i do, i will toss it out and buy a new one. Ive been trying to tell myself no ones trying to do this to you but nothing helps.
Ahh i dont expect help just maybe some stories or someone who has been related to this kind of problem before.

[Brenndy]

try and just do it out of force of habit..you know, like there's nothing wrong in doing it.  that's kinda how i look at it.  just like you wouldn't leave your car keys running in an unattended car.  hopefully, that will make you feel more content with this type of situation. Hope this helps.

[scaredjo]

hiya yeah i have the same paranoia, have you done drugs in the past is that why your so paranoid? i do the same with drinks even if i leave them with my hubby im so scared he hasn watched my drink properly and 9 times out of 10 i either leave it or make him swap lol, even in my local where i know everyone i still get scared. its just anxiety the only thing i can suggest is take your drink everywere you go!!! even if i have a bottle and the place is busy i sit with my thumb over the top of it, i think if you do get spiked your not in control and that fuels anxiety - i did do drugs when i was younger and i think thats why im so scared cause i never want to be in them states agen at the time it was fun but not anymore