DH passes out when he gets blood drawn. (apparently it's actually a manly response, or so he said when he linked some caveman article). I haven't done that (though I did after a vaccine one time). I just hate the feeling. And thinking about blood being sucked out? Nope nope nope nope nope.
I've never done yoga, but I think pilates is pretty similar. I didn't mind that at all. I could see that if you have no flexibility, it would be just painful.
They tried to take my blood. It got weird when they shut the room door and tried to hold my arm down. It was a pretty amazing fight or flight response. They didn't get the blood. I haven't had a blood test this century. Stupid, but it's a real issue.
Doc prescribed some weapons grade anti-anxiety meds to take next time, but I'm still not rushing to play with needles again