I suffer from PTSD, chronic fatigue syndrome, and depression. I’ve been on disability for three years, but really want to work again. For some time, though, I’ve had trouble with things as simple as my phone number and easy mathematical computations. What bothers me most is that I always had a great vocabulary and writing ability. Now, I have difficulty recalling many words that should pop right into my head. I do Sudoku puzzles and crosswords daily, watch a lot of documentaries. My knowledge is increasing, but the ability to convey my thoughts is waning. What can I do???