@littlek,
I am sorry you suffer from migraines, they're gruesome and debilitating.
You might want to visit a neurologist, littlek - with the numbness in your
fingers and the floaters in your eyes, it could be something more...
I used to get migraine's quite often when I was younger and more stressed.
Today, I'll have one if I drink red wine or eat too much chocolate. A sudden
high stress occurrence can trigger one too. Yes, excessive heat can cause
one too.
Taking medication, laying down in a dark, cool room with a cold wet clothes
on your forehead helps. The more you rest the better, sleeping is best.