Thanks so much everyone, I'm feeling better - tired but not feeling sick or feverish any more and managed a bit of breakfast. Such a relief! 
100
Sorry to hear you still have PTSD, hope you're getting support for it 
A motion sensor or video monitor would be good idea if you can find a second hand bargain. Although I have heard that the motion sensors can give false alarms which might be very stressful for you.
Anyway I like the sound of gradually using the cot more, I think we will try that as soon as we can get our act together to sort out a few things in DS' room! (I told DH we need a blackout blind and his reaction was "Nooooo!" He hates putting them up!)
Hugh
I'm sorry your date didn't work out, how disappointing! Glad you could reschedule though - hope you have a lovely time on Sunday.
Carol
Leaky nappies are so annoying aren't they?! Are you using the night time ones? If not maybe try those and/or sizing up...
I am sooo tempted to use disposables at night because the washables leak if we don't change him in the night. Annoyingly I feel as if we have to carry on using the washables because we bought them, even though they are a bit of a pain sometimes!
Hugh
Sorry you had a bad night, hope you can get some rest today.
coupester
I got a twin pack of Grobags from this website for a decent price, they have 2 x 1 tog Grobags for £30 if that's any good (still not cheap but a better deal than other websites) www.babycurls.co.uk/baby-sleeping-bags/grobag-sleeping-bags/grobag-1-tog-twin-packs
purple
Enjoy your walk! I took DS for a windy walk on Monday and it was cute to see him all cosy in the pushchair with his footmuff - first time we'd used it!