Weather,stress, food all contributes to mine. I've tried Sumatriptan, Nortriptyline several others that didn't work. I'm now back to excederin,

I believe it triggers the headaches when I overthink or stressed out

Also, loud noises, bright lights, looking at my phone or computer, stress, although many tell me it’s an excuse to not talk about something. Ugh.

Being a passenger in a car if it’s a bad driver. Heat. Lack of sleep. I try to sleep early but get up every two hours or so. It’s all so exhausting. I need help. This constant pain is terrible

Stress is a biggie plus lack of sleep. Other triggers are constant bright light like being at the beach. Strong smells like too much perfume or smells of food like fish.

Stress, barometric pressure changes, bright and/or flashing lights, lack of sleep, some smells