Thanks Nic, an interesting article to read

Unfortunately I have already done most of what is suggested on there, I switched to decaffeinated drinks last year following the advice from my psychiatrist.

I've tried to go to bed at the same time every night and get up at the same time every morning, but I just couldn't cope, some nights I was getting less than 2 hours sleep and it was leaving me feeling really out of sorts and having real problems functioning

I know that it's already having a bad effect on my physical health too, I keep breaking out in cold sores and the like because I'm becoming run down.

I think I'm going to ring my doctor tomorrow and seek further advice as to what I can do without the need for any more medication