I switched to ginseng primarily. Green tea some but not much and not daily. I cut out coffee for 3 weeks for another reason and the migraines went away.

They come back with stress, not enough breaks from mobile/monitors, and other unknowns.

Exercise daily getting your heart rate up has helped also.

There’s a migraine book out there about the exclusion diet where you slowly cut things out and make detailed logs. Log what you eat, what you did, felt, a super detailed journal. I never make it more than a few days of that.