I've been on WB (generic) for about 3 weeks to quit smoking which...

I've been on WB (generic) for about 3 weeks to quit smoking which I have. I am taking it at night with Xanax. I didn't know I was having side effects until I started feeling strange. I was dizzy at first, but thought I was just sick. I was also a little headachy. Today I was in the grocery pushing a cart and kept getting shocks in my left hand. I took my hand off the cart and it went away. My major complaint right now is feeling very depressed and hopeless, want to cry but ccan't seem to. Also feeling like I could lose control. If I go off this drug will I start smoking again?