Reminded me of the two times I’ve been hypoxic. One was in the altitude chamber. The Navy was great about training and had all pilots experience hypoxia so th

Reminded me of the two times I’ve been hypoxic. One was in the altitude chamber. The Navy was great about training and had all pilots experience hypoxia so they could understand how the symptoms effect them in particular. My first indications was tingling fingers. The second time was flying into Iraq. I had skimped on the preflight checklist and missed the cabin pressure switch, which was always in the on position, but had somehow been set to off. Took my mask off at 20k heading in country and started to feel light headed with tingling fingers. Told my commanding officer / flight lead something was wrong. We started to return to the carrier. During the emergency procedure checklist hit the step to check the cabin pressure switch. Oops. “Sir, we don’t have to abort the mission!” The Navy had some great training that saved my life on more than one occasion.