Citalopram and other medications

I'm not very interested in the side effects that are listed on the bottle, but I'm more interested in what anyone else has experienced with the drug. I'm already using it daily, 20mg. It has helped, but it's starting to not.

I've noticed that I have more trouble finding the words to describe things; whether situations, objects, or ideas. My moods have changed and I've become a little more lethargic along with being more apathetic about the day, my job, and other relationships (save for my marriage). I've felt that my head has been cloudy, like there's ideas, thoughts, and feelings that are just about to break through, but then disappear.

Within a couple weeks my depression subsided and I became much happier, but now the feelings have plateaued overall, becoming more of a 'meh'.