Today I Had At Least Three Fluid Pockets Pop Out

Today I had at least three fluid pockets pop out on my head and excruciating headache radiating from my neck through the side of my head and into my four head. I'm wondering what the connection is between the fluid pockets and the headache? Just so you know, I had a vestibular schwannoma removed in 2012 and total loss of hearing on the right side of my head. It also feels like pressure behind my right eye and blurred vision