finasteride and migraine prevention

[northwest]

Firstly this is just my personal experience.

I have suffered from migraines since I was about 10,
I would normally get at least 1 attack a month if not more.

But since talking finasteride my attacks have virtually stopped now
I am unluckily to get 1 a year while on finasteride, I stopped taking finasteride
for a couple of weeks when I ran out and sure enough I had a
migraine again.

I wonder if there is a link between DHT levels and Migraines?