When I get new symptoms, I try and put them under the anxiety umbrella but a part of me does worry that I shouldn't be ignoring them. One day, I'll ignore something I really shouldn't!
Going back to the CBT techniques - my therapist would tell me to just accept the symptoms. Let them be. Let them do whatever they want. I assume you quit university and work because you were afraid of something, not just because your vision was strange? My therapist would probably say let whatever you're afraid of just happen. If it's serious, like fainting, vomiting etc then people will help you. And if nothing happens, then great.
Have you tried that?
Personally, I struggle with that advice. I allow the symptoms up to a point but when it reaches that point, I always let them overwhelm me and I go and lie down or whatever. I need to learn how to live with the symptoms. Mindfulness is meant to help.