If anybody has experienced an increased respiratory rate after using PG, a mild lactic acidosis may be the cause. As has been noted several times on this forum, PG absorption, ingestion etc.. may cause lactic acidosis. Essentially, this means the pH of blood is lowered. The bodies natural compensatory mechanism to control this is respiratory rate. CO2 regulation during respiration is responsible for controlling blood pH. CO2 concentration is inversely proportional to blood pH. In order to raise the pH of the blood, respiration reflexively increases, blowing off CO2 thereby making blood more pH basic.
It is very difficult to measure your own respiratory rate. It may be noticeable after vaping PG for an extended period of time then laying down to go to sleep. It could arguable also be responsible for other complaints of anxiety like symptoms. I think this will likely be a minor side effect as related to long term health but may be a reasonable hypothesis regarding respiratory rate changes. It can also be easily measured using arterial blood gases.
It is very difficult to measure your own respiratory rate. It may be noticeable after vaping PG for an extended period of time then laying down to go to sleep. It could arguable also be responsible for other complaints of anxiety like symptoms. I think this will likely be a minor side effect as related to long term health but may be a reasonable hypothesis regarding respiratory rate changes. It can also be easily measured using arterial blood gases.