Awake for two days and feel like I'm loosing it...!!!

[peaches84]

Hey there, I am an insomniac, though i'm being treated for it at the moment with anti depressants which work as a sedative, I do get really bad nights... Like tonight, I have been up for over 40 hours, and I have been feeling like i'm loosing it, the problem is, is that whenever I get into bed, (after being sleep deprived the night before-this means, totally no sleep at all...) I worry that the same thing will happen again.... like tonight. I feel like i'm going crazy, and I can't see straight, It feels like my mind is cracking up, and I feel worried I won't be able to sleep, and I won't be able to relax. What's the longest time someone has stayed up with insomnia before? and what happened? I am worried I'm doing myself serious mental damage being up for this long. Can anyone offer some advice on how I could get to sleep? i've had my med, and a nytol, and 2 hops, this usually is fine... but now.... nothing at all and I don't know what to do. I really want to relax and stop dreading sleep.
Please please help me, I'm slightly desparte, and i've come online as I feel totally alone, frightened, and messed up... I know this is ALL to do with lack of sleep, but it's something I really need solved so I can feel normal again instead of like a walking zombie!! lol =(...
any advice would be very appriciated.... I'm tempted to drink, but I can't with my meds really...that's not the best thing to do!! But 40 hours awake..... i guess anyone would be tempted to try to 'knock themselves out!!!!!!'