Hi Simba,
I'm sorry you're getting such thoughtless reactions from some people. Fear is fear, people. Yes, meth can certainly make you paranoid and irrational. But that is exactly when mocking and laughing are NOT needed, and calmness, patience, and compassion is.
Simba, can you elaborate on your fears? Are you worried about meth and the numbing agent they inject interacting? Are you afraid the needle will cause injury in your mouth?
Please take good care of yourself. Make sure you're drinking plenty of water, get a good, hearty, nutritious meal in your belly, and get some sleep hon.
It's ok.
Peace.
Edit: Oh gosh...sorry. Didn't realize how old this post was. My bad. Simba, I hope things are much better for you by now.