C.M.
I took it about 3 years ago along with B-12 injections. At first I was super hyper and shaky, but I'm sensitive to caffeine too. I also couldn't sleep if I took it after 1 pm. I was taking sleeping pills at night just to sleep. I think I got used to it after about 2 weeks, but it makes you feel like you have tons of energy. I did lose about 15 lbs in 6 weeks, but then I decided it really wasn't worth the health risks. I think it will give you a boost to help you lose weight, but i don't think it's something to use long term. I know how hard it is, I've struggled with my weight pretty much my whole life. Good Luck!!