Can't relax, kids away for 2 night

[Ambercakes]

So my MIL has taken my 5 and 7 year old to Brussels on Eurostar to stay with family. She's great with them and I'm sure they'll have lots of fun but they've just left and I'm almost in tears. The house feels empty, quiet and I can't stop catastrosizing about things that can happen to them while they're away i.e., accidents, illness etc. I'm a natural worrier but I keep thinking of worst case scenarios and I can't focus on my work. I've been away from them before they've never been abroad without me. Does anyone else feel like this when their young kids go away? I want to enjoy the quiet and time with DH but I feel so sad with them not being here.

Any advice on how to overcome this would be most welcome, they've only just left!

Go out, immediately, rather than stay in the too quiet house. Do adult things. See friends. Go browse the shops, go to a museum, go and have a cocktail for lunch. Go out to dinner and drinks this evening. If DH is at home too, have sex with the door open and/or in daylight hours. Repeatedly.

Fill your time and they will be back before you know it.

Thank you @Fifty50Fifty , DH and I do have plans to go out this evening, I guess the problem is I work from home and I'm working for the next couple of days so it's hard not to think of them. At times like this I wish I had an office to go to instead!