1. Cutting out coffee for a few weeks completely - it's not necessarily the caffeine but can be hormones or other in the coffee. 2. Try and get a prescription for amitriptyline - I had severe migraines for months and was prescribed it as it can "turn them off". It did, and as a side effect made me way less grumpy and anxious. In the meantime, I stopped drinking coffee, I then came off amitriptyline and then about 6 months later started drinking coffee again and the migraines came back.
I've also done HBOT as I had Bell's Palsy and it worked amazingly well in helping me recover from that. For anything else, do your research on NIH, not here.
Good luck.
I have an acquaintance who went to the hospital within 24 hours of her first hyperbaric treatment. She was coughing up blood, iirc: "I warned you about this, don't do that again."
The antidote for oxygen toxicity is somewhat therapeutic, beyond neutralizing the toxic effects of O2.
https://www.taxiwars.org/2021/06/folly-medical-hyperventilat...