Your story is similar to mine, my anxiety comes from my health worries and yet I'm healthy.
I get these dizzy spells too and if I think about them more or get worked up in them they get worse. I usually challenge myself, i do a neurological exam like walking in a straight line, standing on one feet etc. I figure if I was really dizzy I would've fallen while doing them... If I didn't then I know I'm brining it on myself. Sometimes I feel like crap and accept the way I feel as not having eaten or tired or just had too much information for the brain.
I distract myself also and try not to think about it too much, it holds no power of me. Ever since I had these anxiety I learnt not to trust my feelings and thoughts, that they could be exaggerated and doesn't mean what they feel.
Today I have a problem.. It's my first day of internship & been working 4 hours straight the whole morning on some research paper to do. At 1pm I started feeling a bit dizzy & went for lunch break alone. I started thinking about a bank intern who died of exhaustion a year ago, and I'm currently freaking out about dying of exhaustion. I feel dizzy & have a bit of trouble breathing.
This is weird because I've had a good night sleep last night & consistent breakfast this morning. And even 4 hours of work is not a lot for a normal person.. I'm also thinking that doing too much exposure work may be exhausting (my automatic thought is too much work -> exhaustion -> death)
Did this happen to anyone else? If yes, how do you challenge your negative thoughts?