It's been over three years now that I've been dealing with the symptoms of POTS. I get it all. I'm unable to work and I'm on social security disability now. I've been to the Mayo Clinic in Phoenix and I'm currently seeing several doctors at Stanford University. I've kept journals of my symptoms on and off again throughout my ordeal. And I've tried pretty much everything to make my symptoms manageable and less severe (various medications, acupuncture, increase salt intake, increase water intake, compression socks, smaller calorie meals spread throughout the day, early sleep time) I use to be really fit and active outdoors. I tell my doctors that my everyday symptoms most remind me of climbing a high peak like that of Mt. Shasta or Mt. Rainier where oxygen is low and physical exertion is high. I use to get headaches, nausea, fatigue, I'd be unbalanced, and I'd sometimes get blurred vision when up above 11,000 feet or so. Now those symptoms happen every day at sea level (San Francisco). I always have a headache, never goes away, but the intensity changes. Some are long lasting rolling/throbbing pains while others are short bursts (ice pick headaches). A couple of years ago I read about cluster headaches and how they're worse than migraines. The only thing that ever worked was the use of oxygen. Knowing this and how I use to feel up at high altitude (where oxygen is less present) I thought it made sense for me to use oxygen. So I've asked my doctors for it and finally I have a tank at home. My questions: Has anyone else tried oxygen for migraines? How about POTS in general? Or other specific symptoms (light headed, passing out, abdominal cramps, balance issues, vertigo)? Did it work? What is your intake (i.e. 10 liters per minute)? How long do you use the oxygen? Do you use it regularly regardless of the symptoms present (i.e. every day for 10 minutes at noon)? Thanks for any input.