Ds1 (4.7) has to have an operation tomorrow, it's routine surgery, low risk etc etc but I can't stop panicking about it and so so worried that something will go wrong. 
I've been trying to be upbeat about it for ds1 and he seemed fine but then this evening he was saying he was scared and I really really don't want him to feel scared or to realise that I am scared.
I'm crying at the slightest thing at the moment as so worried that something dreadful will happen. I know the risk is low and I'm also aware that I'm very lucky that he's generally well and healthy and that many parents go through so much worse but trying to rationalise my worries isn't working at the moment.
Does anyone have any tips for how to appear calm to ds1 and how not to cry as he has the anaethestic? My eyes are welling up now just at the thought of it. 