Definately needles, especially the canulars they use before surgery and they slip them in under the skin in the back of your hand, I usually howel the place down!! Now have to ask for kiddie gel to numb the hand or arm, as I ask to have them put in my arm rather than hand. Blood tests I always warn then I could pass out, they tend to lay you down if you say this.
Heights as well, even though the heights on Rollercoasters doesn't affect me at all, just stand me near the edge of a drop, I totally freak, Phill did this to me on Isle of Mull, next to a water fall, he even sat on the edge, I just completely collapsed with fear, I was a wreck and all he could do was laugh....London Eye is OK but the Eiffel Tower was not good. Yet having a trial Flying Lesson was awesome, the height was nothing as I enjoyed it, neither did flying to US.