Hi all, not sure if this has been answered before or is common so apologies if so.

Background: 37M, been having migraines since early teens. At first they were 2-3 times a month, slowly decreasing in frequency until around my mid 20s I would have maybe 1 per year. Went a few years with none, then one, then none. At one point I described myself as "I used to have migraines".

I always get the classic ocular migraine; zig zag lightning in the eyes, blind spots, then pain on the opposite side to the eye that's affected. Pins and needles, numbness, and nausea, with some dizziness - but these symptoms abated over the years and I just had the visual indicators. They were much, much more severe when I was younger. Vomiting and nausea was through the roof and they would incapacitate me for 5-6 hours at a time.

Since Sunday I've had a migraine every day, each one getting progressively better but still stopping me doing much. I just had one where I had blind spots for 20 minutes and now that has gone, and I have a 1/10 pain in the top of my skull on right right, opposite to the eye that was effected. I am still working and typing. Hopefully tomorrow I won't have one again.

I've noticed that my migraines always seem to coincide with hot and sunny weather (currently 24C/75F here in the UK after some colder thunderstorm type weather last week). They also seem to happen when the weather changes suddenly to hot weather, as has happened recently. Is this pressure related, or light/heat related? Is there anything I can have in a "toolkit" to mitigate these effects for in future?

I am on no medication, have no health issues like high blood pressure or anything like that.
Thanks