I ordered ginseng, and its the kind that comes in a tiny bottle and you put a straw through and sip it. I took it this morning, had more energy, went to see my pdoc and he was like, "you seem more alive today." I told him I took ginseng. At noon, I took another little bottle of ginseng because I thought it was like coffee, you take it twice a day. Now its 4:20 PM and I feel very jittery, like I drank a ton of coffee. Does it help anyone? Has anyone had experience with it? How much am I supposed to take?