Hello Rob,
There are a lot of members here who use yoga or meditation to help with their anxiety. I'll post a few forum links below that may be helpful for you.
There is an
Anxiety & OCD Forum
Alcoholism, Addiction and Recovery Forum
Headaches (includes Migraine)
There are many older posts too in the
Medications Forum regarding withdrawing or tapering form certain medications.
You could try a forum search in there for previous posts if you wanted.
Hopefully your energy levels will return as you recover. You were on those pills a very long time if I recall correctly.
Wishing you all the best.