anxiety
"I was 61 before experiencing anxiety.  It happened when I quit smoking (2 packs a day).  If I smoked, the anxiety stopped.  I wanted to quit smoking very badly.  I quit 5 months ago. I take 1/2 dose of Alprazolam as needed, usually twice a day.  No side effects.  I could not have quit smoking without it.  Hopefully, I can wean off the alprazolam gradually over time."