He ended up dozing on and off for about 40mins and is more animated now...I was ready to cart him off to the drs if he didn't perk up.

Can't tempt him with cordial or lemonade, and even his fave, ice cubes, weren't touched. Managed to get a few sips of water in. He's eating carbs though... (If you hadn't picked up, DS has a few sensory issues - we're starting with an OT next week, but that doesn't help us now...)

Thanks everyone for letting me worry on here. I do feel like a bit of a worrywart and that I'm hassling everyone, but I also don't want to wait and see too long, especially if There's something else i can be doing. and dehydration worries me. He hasn't wee'd since 10am. Drs tomorrow I think, we have to see them anyway so might just book an extra long appointment....