I realise this is a long one but please read.. Ok, so, Hi, my name is Sam and my partner's name is Paul. I'm female, 23 and sub. Paul is male, 35 and dom. background stuff: we've been together for a couple of years and since pretty early on we've been playing around with strangulation, with me being the one being strangled. we discovered it was something that turned me on a LOT, and P got to enjoy the power/domination it gave him too. we've never done it too hard/long, only ever been for 10, maybe 20 seconds at a time, only hard enough for my face to go a bit red and it never really limited my breathing or anything. i've always been the one who wanted him to push me to the edge and P's always held back, worried he'll hurt me, but lately we've been pushing it a little bit further each time. what happened: well, one day last week we were fooling around, enjoying some foreplay etc and i grabbed P's wrist and motioned him to grab my neck, and he did. immediately i felt it was too tight and intense, and then all i remember is waking up, with my hands and feet numb and P with a look on his face like he'd seen a ghost. so what's happened is within 2 seconds of P grabbing me I've passed out. My head fell to the side, my eyes still open (P described me as having "dead eyes" - not looking at anything, no focus etc), and i wasn't breathing. within a couple of seconds i started having convulsions which lasted for around 10 seconds and then stopped. i still wasn't breathing, laid still for a few more seconds then started a second lot of convulsions for another 10 secs or so, after these finished i started spluttering then woke up. after i came round i couldn't remember anything (no white lights or St Peter - lol) about what happened, all i know is i must have passed out so fast i didn't have chance to tap P's arm or anything to say it was too hard. i could breathe ok when he was doing it, so he must have cut off the blood running to my brain or something.. has anyone ever had this happen to them? or heard of this? i find it strange the 1) i passed out so QUICK! like, it was immediate almost and 2) the fact that i had stopped breathing completely, and 3) the convulsions??? needless to say we've decided to not do this again until we find out what happened, lol. oh, and no we didn't go to any doctor or hospital or anything. after i came round i was fine after the pins and needles had gone from my hands/feet, and it was all over too fast for P to have called an ambulance, though he was about to try mouth to mouth when i came round..