I often get headaches in the area located behind my eyes. Are these migraines?

Get checked out. This could be migraines. However, it could also be cluster headaches or something more ominous. Headaches are very common but with the limited info, you shold see your family doctor, especially if you have never been evaluated for this in past.
Pain behind eyes. There are many reasons for pain behind the eyes. Most of them have nothing to do with the eyes. It can be related to various head pain , sinus problems, neuralgias etc. The main thing is that if they persist they need to be checked out.