I always panic when I know I have to take a drug test at my monthly doctor's appointment. Luckily, I get to go in a bathroom by myself, but just the fact that knowing the nurse is sitting outside the door WAITING for me makes me freeze up. It's like every second goes by I feel like the nurse is prob. getting mad or thinking that I'm trying to cheat on the drug test.
I found drinking alot of water and green tea in the morning helps, even though it is still a source that gives me anxiety and makes me dread going to the doctors every month!