I can't say for sure what it is but it sounds more like depression than anxiety to me... But that's just my experience. When I don't feel like talking it's not because I'm anxious but because I'm down or low.

You might want to ask your pdoc about it to see what (s)he recommends as far as med changes. I typically don't like to increase my meds unless I am dealing with something that completely interferes with my normal day to day life.