I was put on the exact same dose for depression and SA back in 2002-03. It was a nightmare first month when it kicked in. Then it really helped me out with the SA. The anxiety and thoughts were still around but I felt like a new person tbh. My then gf at the time was very understanding, confident and outgoing and that helped me too (I miss her :|).I think I'm just one of the lucky ones.
20 mg of Celexa.