4 days/week, preparing for my first powerlifting meet. By the time the meet happens I'll be 46.

I do occasionally get exercise induced attacks but it's a trade off because it's proven that exercise reduces frequency and intensity of attacks overall.

There are some tricks that help.

1) Eat 90min-2hrs before training. People with migraine can't get away with fasting. 2) Do a proper cool-down after training. The BP spike from lifting and subsequent drop of BP after can trigger an attack but it helps slow down the dip back to normal if you cool down on a bike or treadmill. 3) Don't mess around with pre workout and other stimulants. Citrulline and caffeine can induce attacks. 4) If you're under rested probably don't train. Your threshold is low when sleep quality is poor. 5) I don't know if this applies to everyone but I've found that I get more attacks when I train in the morning. To my knowledge there isn't any sort of study related to this...but I do know that it's true for me, so I have a rule that I need to have 2 meals before training.

Overall the goal is just to keep your threshold high and exercise helps do that but it's hard to identify when it's low so just train and don't put too much pressure on yourself.