Let go of the idea that it's 'inevitable' in any way, shape or form. Millions of people go their entire lives without experiencing these frightening heath issues.
Take things one step at a time and always practice mindfulness
; don't spend your time so afraid of a thunderclap headache that you forget that you have a new book, or that you only pay half attention to a favorite show and wind up lost at the end. It may take practice to focus on other things when such a worry is present, but everything takes practice, right?
When you do get a headache, just take a soothing, deep breath and give yourself a neck, scalp and face massage. Feel your shoulders; are they tense? Tense shoulders can bring about headaches, and much of the time people don't realize they are
tense. Think of your day; was it stressful? What did you eat? Have you been drinking plenty of water? Did you take ten minutes to slow down and just breathe and relax at all? Consider, for a moment, if perhaps pollen or weather may be affecting your sinuses or your allergies.
I hope this helps a bit, Bliz