I am really confused and am not sure if it is worth seeing a neurologist or not. I have one large pupil and went to a optometrist. The pupil reacts to light. He asked me if I had noticed my pupils were different sizes before. I looked at past photo's and in some of them the pupil seems a little larger, maybe. In recent photo's it is defiantly larger. It seems to be much more noticeable now. I am experiencing other symptoms such as body pain, headaches, twitching muscles, some random jerks. I have depression and am worried that people think it's all in my head and they don't take me seriously.