This is Dr. David
most likely your GP and NHS will not pay for ozone therapy.
you can read here
I am sorry you are having these symptoms.
have you symptoms been going on since your surgery 24 months ago?
why do you think ozone therapy will help your symptoms?
have you had your thyroid and iron and B12 and vitamin D levels checked? if these are low, these can cause low energy.
if you have signs of emphysema, you really shouldn't be smoking.