Hi i was out with an old aquantance of mine last week. he is a introvenus heroin user. we were arguing a lot over me not lending him  money although i dont know him enough to know if he is spiteful or not. i was staying at his home for a few days whilst fallen out with my gf. he asked me to take him to score and reluctantly i agreed. on taking them to shoot up their drugs i heard them whispering about something. the person who was with the aquantance was behind me in the car, i was driving and he was acting shifty. when he left i saw marks on my arm but am unsure if they were their previously. my question is if he could possibly put a needle in my arm and me not feel it whilst driving. judging by the marks he would have had to do it 3 times all very close to each other within a cm all 3 marks. also if he did not hit a vein wouldn't it leave a lump? i had clothes on so he wouldn't be able to see any veins. i did not have a lump just 3 tiny clean lookin spots, nor was their any blood. Also i slept on the sofa the night previously and am wondering if it would be possible to do this to me in my sleep, i am not a heavy sleeper but i wouldnt say i was a light sleeper although i do wake up in the night a lot. The reason for my concern is when i am around this aquantance he seems off and he steals and says if hes caught he will threaten them with a needle to evade capture. the only reason i was with them is i had nowhere else to sleep as had argument with gf. to further concern me i have kept an eye on this since my concern and have seen tablets in his house lamista 100 hbv tablets and have googled and found them to treat hiv and hepatitis b. all of this adds to my concern. i do suffer anxiety. this incident happend last wednesday and today i felt tingling in my body, i read   Peripheral neuropathy is sometimes asociated with ars. i did not feel any needles and it has been a long time since i have had an injection. would an infected needle leave a bruise, blood, mark etc? also would i feel it awake or asleep? please someone with knowledge please answer as i am worrying. i am not a drug user. i drank alcohol the night previously to falling asleep on the sofa and would this make me sleep heavier i would not say i was to drunk though. also could the Peripheral neuropathy or simialr be from drinking alcohol last night. sorry for long post but i am sh*****ng it.