BadaBing
Registered
Apologies up front if this subject has been covered before, I didn't find it here.
I dive with a regular crew of spearfishermen. One of the guys (really, it's not me) who happens to be the best spearo ends up with really bad migraine headaches after almost every dive. Here are general conditions... Nitrox dives, HP120 or 130 tanks, depths 80 - 110 feet. He is also a free diver, and sips air. On his last dive of the day, he'll max out his bottom time and still come up with 1500-2000 pounds of air.
His headaches are so bad that he carries Immitrex with him in both pill and injectible form. Last time out, when he got hit with his headaches, we had him breathe off the O2 kit we carry and that seemed to help.
I asked an experienced dive buddy who also knows my friend about this. His opinion was that he's getting the headaches because he is not breathing enough -- he's not exhaling enough CO2, and the headaches are due to CO2 buildup.
I'd appreciate any input as to whether that theory makes sense, and any ideas on what he can do to stop the headaches.
I dive with a regular crew of spearfishermen. One of the guys (really, it's not me) who happens to be the best spearo ends up with really bad migraine headaches after almost every dive. Here are general conditions... Nitrox dives, HP120 or 130 tanks, depths 80 - 110 feet. He is also a free diver, and sips air. On his last dive of the day, he'll max out his bottom time and still come up with 1500-2000 pounds of air.
His headaches are so bad that he carries Immitrex with him in both pill and injectible form. Last time out, when he got hit with his headaches, we had him breathe off the O2 kit we carry and that seemed to help.
I asked an experienced dive buddy who also knows my friend about this. His opinion was that he's getting the headaches because he is not breathing enough -- he's not exhaling enough CO2, and the headaches are due to CO2 buildup.
I'd appreciate any input as to whether that theory makes sense, and any ideas on what he can do to stop the headaches.