Did you get this anxiety when you started cleansing or did you have this before?
I really would recc getting your adrenals tested. This could be a cause, as well as a hormone imbalance. Many things can cause this and I would get tested first.
Find a good alternative Dr to do the tests. It can be expensive though. I do know that there are places on the net that send you kits and you do the swabs yourself(saliva) and send it back and then they send you the info on what they found. This can save on costs as well.
It is much better to find out what exactly is going on in your body before attempting to fix it since you want to be sure you are fixing the correct problem and not making it worse.
Also, Maybe a good Kinesiologist could help. I have a friend who went to one and he helped her alot. They typically do not charge as much as a Naturopath.