I Have Recently (5 Weeks Ago) Stopped Smoking, And Began

I have recently (5 weeks ago) stopped smoking, and began taking a product called Curbitrol. I have noticed that I have become very emotional, and have high anxiety at home & work. I am afraid. I do not feel right.
I am trying to find answers about how this supplement is interacting with my other medications or if it is just
the supplement itself. I feel like I have no energy to fight off whatever the negative is that is coming.