I really, really hope you don’t too mate, there’s plenty of possibilities so let’s hope it’s something minor and fleeting.
If not, at least this thread is full of people willing to help and share.
As for bloods I used to have a real problem with needles, I had to have all of them done lying down and I’d often go even then. I genuinely couldn’t give a toss now, I watch the canulas go in, and I’ve had them in my forearms, hands, feet and I’ve even had a deep arterial one in the wrist, and whilst I’ll admit that was quite painful, I’d have puked before and I didn’t even grumble. So trust me, it gets better!
If you do have it you’ll probably be pooing into a tray and scraping it into a vial more than anything