I heard of this with the epidural. Causing migraines for up 6 months, i think its from like leaking spinal fluid? But that can be a side effect
I took a 5mg flexeril it worked wonders :)
you may also be grinding your teeth when you sleep.
My stress Headaches are : stress, tmj(grinding teeth)
I had a few migraine headaches around that time after I had my daughter. It was when I started having my periods again and my doctor thought they were caused by hormones, etc. He said going back on birth control (one that was safe for me since i was breastfeeding) could even things out. I really didn't want to go back on any kind of hormones so I waited it out and each month got a little better until they were gone on their own. I hope this helps!