> Slowly developing, stable respiratory acidosis (as in COPD [chronic obstructive pulmonary disease]) may be well tolerated, but patients may have memory loss,

> Slowly developing, stable respiratory acidosis (as in COPD [chronic obstructive pulmonary disease]) may be well tolerated, but patients may have memory loss, sleep disturbances, excessive daytime sleepiness, and personality changes. Signs include gait disturbance, tremor, blunted deep tendon reflexes, myoclonic jerks, asterixis, and papilledema. [0] So, quite possibly nothing, or nothing you'd realize. Bodies are adept at compensating. But there are potential concerns, and also, a chronic (and compensated for) issue can acutely deteriorate. I am not a doctor, though. [0] https://www.merckmanuals.com/professional/endocrine-and-metabolic-disorders/acid-base-regulation-and-disorders/respiratory-acidosis https://www.merckmanuals.com/professional/endocrine-and-meta...