Back in the pre-twin days, when I got really, really tired, I'd get migraines. That sucked, but was easy to fix: get more sleep. In fact, about six years go, my doctor told me that some startling number of sufferers elminiated migraines from their lives by sleeping a consistent number of hours per night, so I gave that a try. And it worked. I was grateful.
When I got pregnant, I worried that my migraines would return. My sleep was pretty disrupted during pregnancy, and I knew that the twins' arrival was not going to remedy that. As it would happen, I was fortunate enough not to suffer any migraines during my pregnancy, and am pleased to say that I actually haven't had one since the kids were born. For this, I continue to be grateful.
Here's what's happened, though. Instead of getting a migraine when I get tired, now I just feel like I'm going to throw up. It's like having morning sickness again (and no, there is absolutely no chance that I'm pregnant). It's rather unpleasant, although I guess it's better than a migraine.