Is it possible for the type of pillow you use to cause migraines?

I've been having severe migraines off and on for the past 2 months. My doctor and I have eliminated most environmental and dietary possibilities as the culprit. However, at some point not too long ago I changed out my pillow with one from my spare bedroom that I don't normally use. It's approximately the same type of pillow I was using before, same thickness, firmness, etc. but feels like a different type of filler. Could this be causing the migraines?