+1 … Suggest to find a physician or physical therapist who is willing offer up some ideas to try first, before resorting to meds and having to live w/their undesirables side effects. You could just be experiencing a mild case claustrophobia for example, and there are probably methods to address that symptom which don’t involve meds. In the meantime, try to decide which among “dizzy” or “light-headed” best describes your symptoms, will be helpful to the experts you hire to help.
I used to have a similar issue but only under certain circumstances. Id get nauseated if i laid under a car, but only if i had an empty stomach. I could eat something and it would go away. Turns out i had an ulcer. Got it fixed and felt better.
Have you tried fasting?
Nothing but plentiful pure water for 24 hours.
Nextime 48 hours.
Then 72 hours.
Someone did this years ago and it worked.