Sounds like you are on the right track with treating anxiety. I assume you are under the care of a doctor, that's how you got the medication and you doctor knows you are taking it.
My wife has had problems with stomach upset, I think it was from the anxiety med, but it could be due to the anti-depression med, I can ask if it would be helpful to you to know. I am sure the anxiety med makes her tired.
I do believe that both anxiety and depression medications take time to work, that is they don't make one feel better the first day, or even the first week.
give them time to work, it may take a few weeks from my experience. Also, when quitting, wean yourself off very very gradually to avoid side effects.