Well I've managed to keep my last lot of water down for now, so things are looking up.
Hoping that with me feeling a little better I'll be back to work on Monday, though the bonus with norovirus is you don't want to eat anything (let alone be able to keep anything down). Little nap later should do the trick then on to looking in to finding a new job from July/September - my choosing not a forced leaving, just time to move on.