question: Hello, I have felt my pulse in my head, primarily on the left side for three weeks. Not only can I feel it, I can hear it. It is so loud that it s hard to concentrate on other things. It doesn t hurt like a headache. I have also had a drastic change in my vision in the past two months. I am able to sleep at night, but as soon as I wake up, the first thing I am cognizant of is the pulsating in my head. It is getting worse instead of better. I have a history of having had a meningioma on the left cerebella lobe peripheral, 2004. I fear this could be a sign of another brain tumor. Are there other things that could cause these symptoms?