Happy Friday Morning to you, Mary!
I'm glad to see you've received your prescription for Chantix as I recall you were interested in possibly using it to quit smoking. GOOD FOR YOU!!! 
I'll be Smoke-Free for *ELEVEN* months on January 19th. I started taking Chantix at this time last year and had my last cigarette on February 18th after smoking 2-3 packs a day for almost 30 years.
The only difficulty I experienced while I was taking Chantix was increased flatulence
. However, Tums seemed to help with that. I also had some very *vivid* dreams but in a GOOD way. I'll just leave it at that. 
In any case, the only other suggestions I can share which helped me...Stay busy, drink a LOT of water, and if need be, avoid the computer and the phone~~~those were my two BIG smoke triggers so I avoided them as much as possible.
My BEST WISHES to you, Mary!
Krissy