Hi,
I'm sorry that you're having such an awful day with the anxiety. I would love to be able to offer some reassurance but I'm not sure how helpful that would be. I know for me, the moment I'm reassured from one perspective, my brain latches on to some alternative angle. That being said, I have to have the full blood works done regularly and usually within in a couple of days, I either get an email to see they're fine or one to say that I need to se the doctor. Either way, bloods are checked in the labs and then by the doctor. If somethings immediately wrong, they're flagged and you would have been told by now.
What's going to be helpful to get you through till tomorrow? Do you have strategies? Does distraction work? Does anything calm you?
You can get through this, even if you have to literally do it minute by minute.