I have been getting these weird pressure like sensations that pop up in my head that are hard to describe then go away what could it be?

Sometimes is hard: Those type of symptoms are always frustrating for patients. They might be hard to describe and may be just as hard to understand for the doctor. Some things we can figure out and sometimes I tell people that I just dont know what something is. You need a patient listening doctor to hear you out and see if anything comes to mind. We cant always tell people what something is but often its OK