I don't do drugs, but this morning I walked to Starbucks and got a medium iced latte, and ever since then I have been feeling really shaky. I try to avoid coffee, but I do like the taste a lot. I probably should of gotten decaf, but whatever. Anyway I also have Tourette's Syndrome, and in addition to the caffeine from the coffee; it's not a good combination. Are there any ways that the shakyness can go away? And how can I prevent this from happening again from drinking coffee?