You waited a day for better help ...
If I would have to guess, I'd guess a heat, sunlight problem - and wilt because of that. Maybe there's a disease issue but we can hope not.
We had one of the few sunny days, yesterday. I'd left the automatic intake fan on in the greenhouse and the exhaust fan open but not running. It was 55°f by the time we got home in mid-afternoon. I knew I was in trouble. Some of the tomato leaves looked like that.
But relax and do not rue:
For the Other, too 'tis You! ~ Peter Rosegger