Has anyone been diagnosed with low CO2

I was diagnosed with long COVID 6/24 and was slowly improving until a viral infection in 9/25 put me back to ground zero. I was referred to the aero space dept at Mayo and they found low CO2 levels causing chronic respiratory alkalosis. My Dr. feels that it is the root to the myriad of symptoms that I’ve been experiencing. He equated it to having altitude sickness for 2 years, He also stated that he has been seeing many patients 1-2 years into a long COVID diagnosis with this same condition and that it could be treated much quicker if primary doctors would order an arterial blood gas draw. I’m now on a treatment plan of medication and PT which should gradually bring me back to normal over the next year. I’m very hopeful.