Talk to a dr who specialises in drug and alcohol issues. I have a psychiatric condition and take anti-psychotics and anti-anxiety drugs. I didn't take them before I stopped drinking mainly because I self-medicated with alcohol, painkillers and sleeping tablets. Once I stopped taking all of those things, my psychiatric issues had to be dealt with.
I think very high levels of anxiety are common to many people who quit drinking and does subside. Some people need more help. Can't hurt to get a 2nd opinion.