Just want to second this. I was getting migraines every 2 weeks (visual auras, thumping headache for 3-6 hours etc) mainly triggered by stress & lack of sleep as far as I could tell. Started taking Vitamin B and I haven't had a migraine since - for over a year).

There is research to back this up as well: - https://pubmed.ncbi.nlm.nih.gov/33779525/ - Conclusion: Vitamin B2 400 mg/day significantly reduced the duration, frequency, and pain score of migraine attacks.