OMG! I feel for you, I think I've had that nurse. My veins are super hard to find so it either takes a really good person, or some patients on both our parts.
When I was so sick after I had Seth, several things happened to me, they had to take blood a couple times every couple of hrs, which was pretty hard on me. Eventually they had started to exhaust veins, and if I would have stayed any longer, they would have had to start taking blood from my legs and feet.
I still have a scar in the crook of my elbow from when an IV came out! It was so infected and irritated that I had a bruise starting above my elbow all the way down to my wrist.
I have also had a blood draw from that spot just below your thumb. I think they called it an arterial draw. You aren't kidding when you say they hurt! I couldnt imagine having something injected into that vein. *huggles* I am so sorry!
As far as my CT scan, I have stories to share too! The most memorable is the final CT I had to determine if all the blood clots in my lungs had diminished, and I was out of the woods. Well when they shot the contrast into my arm, no lie, (I know I sound silly when I say this) but I HEARD it. I HEARD the contrast, after that I felt like it had pooled in my left temple. To this day I will get really bad shooting pain from my left temple, back to about mid/3/4 skull.
Anyway, It's all over now... We're here for you.