The most noticeable side-effects that I've experienced were induced ultra-rapid-cycling and racing thoughts, but the most embarrassing of them all: hand tremors. I'd be out with friends and I'd look like I was a freaking junky because it seemed like I couldn't hold a plate or glass without spilling because my hands would shake so much! I'd literally hold a glass with both hands like I was a toddler! I'd be so anxious when I'd order a beer because I'd be worried I was going to spill it everywhere!