Dr Xand says understanding your own headaches can be surprisingly helpful as they often don't have a single cause so keeping a diary can help you spot patterns and triggers.
For some people, weather such as thunder and lightning could trigger it, while for others it might be sensitivity to light.
"The worst time for me is when we're driving in the autumn and the sun is low and the sun is flickering through the trees...it really aggravates," says Dr Munro.
It's worth noting down things like:
But, Dr Munro cautions that you shouldn't overdo it.
"I made the mistake of making mine very detailed, which was depressing. Instead keep it simple and maybe write a number from one to 10 to summarise the impact it had on your day.
"It's also useful to track how many crystal-clear days you have, not just the bad ones.
Your doctor can then review it to help identify patterns.
