Wilty Tomato Plants

Hello

I have been growing my toms from seeds and they were progressing quite well and as we have good weather I put them outside for a bit during the day as they have been sitting in my office (purpose built garden office with a west facing window) and since this a few of them look like they have wilted a bit.
Is this a bit of wind damage or too much watering or something else. I thought I’d keep them in my office as although it gets a little cold at night the heating pops on around 4am.

Also should i start to think about feeding these?
Thanks
Mark

Thanks for the response.
I can’t remember what compost i used in the end so well have to see. My watermelon is suffering too, the leaves are all shrivelled up which is frustrating. Gutted i put them outside now.