Sounds like a good plan, my friend!
Are you a caffeine-helps or a caffeine-hurts migraine person? For me, caffeine helps, so the first thing I do is an espresso shot when I feel one coming on. Oftentimes, I can fend it off before it takes real hold! But I know some people are the opposite, and caffeine makes it worse.
I have a FB friend who does photography like that - only being able to do location shoots. I'm sure especially in winter it's a real slow down on business! So much luck with your plans.