Small Veins

I went to have a blood sample taken today because apparently I might have something wrong with my thyroid. I didn't really think too much about it because I've had blood taken before and it is no big deal. My doctor sent me a form to present to the people at the Quest Diagnostics Center, I found the closest location and off I went.
When I got there, the lobby was very full. It was mostly elderly Spanish speaking and Asian people, with a few children and then about three people my age. A very nice man offered me his seat, but I refused and sat down on the floor to wait. He wouldn't go back to his seat, so another woman took it.
I waited for about twenty minutes when they called the name of a boy who looked about 9-years-old. Soon after he entered and the door shut behind him, all sorts of yelling and screaming began. You could hear clearly everything that was happening. The nurse was telling him that he had to calm down or they were going to have to tie him down. I felt really bad for the boy, but I felt even worse for the poor little kids who were waiting their turns in the lobby. I can only imagine what they thought they were in for!
They must have tied the poor boy down, because he started yelling at the nurse and calling her stupid. Then he claimed he couldn't breathe. Then, finally, he yelled out, "Oh Lady, what are you doing to me? What have you done to me?" It was so plaintive and sad. Everyone in the lobby looked at each other and burst into laughter. We all felt so bad for the boy and also for the kids in the lobby.
Soon the boy came out from the office and was walked out with his mother. The nurse called the next patient, who happened to be a five-year-old boy, and, of course, the boy started to freak out. He came back out quickly enough, however, his face was tear stained, but he didn't put up half the fight as the first boy.
When it was my turn, I was told that I had tiny veins and, after the first nurse stuck me twice and had no success finding a vein, I had to wait for the other nurse to do it because she apparently was better at finding veins. This is the same thing that happened when the doctor was trying to find a vein to put me under for my wisdom teeth removal. How come the lady at the doctor's office has no problem? I come from a long line of small veined, low blood pressure, poor circulation ladies.
So now I have to wait and see if my thyroid is under active. I kind of hope it is, because that would explain a lot. At the same time, I am concerned because my aunt has this problem and she also developed MS when she was older.