I have tried l-theanine and I think it works, but no sure if it really does. Xanax is the best when I am at my wits end, I know it;s nit a natural thing, but it is quick. I could use it right now, my stomach is really cramping up and gurgling. I feel lousy and want it to go away. Let me know if you have any luck with anything else. I see this was a week ago, did you get to the doctor yesterday? What did he say?