Nov 03: Today was my 32nd dive with 4 other divers and I noticing my bad headaches are less severe and frequent. Prior to my brain surgery and since I joined the US Navy I had experienced almost daily migraine headaches and since the surgery I have had daily headaches though NOT migraines, BIG difference. Since starting the HBOT dives the headaches have been lessening. I went to the gym and did 5,000 meters rowing and a full resistance weight routine.