Hi laxmom,
Here is a link that may answer your question on the reduction of side effects after lowering a med dose.
http://www.theroadback.org/
Did the doctor not give you any indication? Another thing that you can do is give your pharmacist a call. They often are extrememly knowledgable, and can answers these types of questions for you. (sometimes even better than your doctor)
I would say that if you started feeling these particular symptoms shortly after the increase to 100mg...then you can expect them to improve with the decrease in dose.
Were you feeling any relief at your dose previous to the 100mg? Hopefully, the 50mg will be your right target range for anxiety relief without the s/e's!
As far as the natural remedies go, I am all for trying them. I am fortunate to be able to use holistic methods solely for my management (but I fully realize that this is a choice that not everyone can make!)
I have not used Natural Calm myself, but have heard of it. Keep in mind, that all-natural does not mean safe for all! You wil want to check with your doctor for med interactions before trying.
I wish you the best, and keep posting!
S.C.