Hiv anxiety

[Clay54321]

Basically I was on holiday and I had memory loss half way through the night and I remember nothing , my mates all said that I was running around like a loony and was quite wild , so somone must of spiked my drink .. My mates said they was with me all night as they took me home at the end of the night during the night we even went to the beach and I can't remember it , it's like I wasn't in my body , so my worry is this for some reason I panicked and thought what if someone stabbed me with a dirty needle because they felt like it or what if they injected me with aids/hiv , but surely if someone wanted to do something to me they would just attack me or mug me , it's been worrying me sick that I can't eat sleep or be my normal self anymore it's driving me insane , the next morning after the night I had no marks on me apart from little bruise on my arm which could of happened just by my mates grabbing me or play fighting with me there was no needle mark or anything, surely I would feel some sort of ache pain or hole of someone stabbed me with a needle right ?    , I don't know why I'm thinking these thoughts but they won't go I just keep thinking what if,  another is that me and all my friends had a tattoo on our  *** cheek the one night which I remember and we are certain the guy changed the needle to new needles but even that is starting to worry me about hiv , please can someone help just so I can put my mind at rest and get on with my life