Hi and Welcome to Healing Well and the A & P forum. I am Kitt.
This is almost a typical story of the way generalized anxiety presents these days. Psychotherapy can help as well as medication. :)
I would recommend keeping that appointment with the eye Doctor. I am also very happy to hear you are being your own advocate and seeking out a psychiatrist.
You have joined a wonderful and caring forum and the members here know what your going through so please stay with us and keep posting.
Again a Warm Welcome.