This year I had 2 episodes of the following symptoms: very bad headaches, nausea, vomiting that would not stop for a few hours. I had similar attacks (?) more than 20 years ago, when I was in my early 30s, and had plenty of tests, including ultrasounds, but doctors could not find any issues. In time those attacks stopped. Should I be worried or just watch my diet and avoid fats and smocked cheese/meats, etc. Thank you!