I learned in 2010 that I have some thing called a Type 2 Arnold Chiari Malformation. It occured when I was three months old and because of the increased intracrannial pressure inside my skull it caused a malformation underneath my cerebellum. In short it also means they caught the hydrocephalus in time before my brain herniated down the back of my spinal cord. However, there are times when it causes me to have small headaches in the back of my head . Sometimes I have to take aspirin in order for them to go away. There isn’t much that can be done for treatment as it’s in a sensitive area. This morning from 1am-3am I had a chiari headache and got up to watch some late night television and took an aspirin with some food. There were also moments when I felt the same pulsing sensation I’ve felt all summer at the top left corner of my head. I was able to go to sleep and got up this morning at 5:45am to start the day. The chiari also causes dizziness and balance issues. It’s the reason why I don’t sleep on my back looking at the ceiling as it puts pressure on the area. If I’m laying on a head surface ( such as an MRI machine ) I have to have a towel underneath my neck. The one time I didnt’t use a towel, when the exam was over, I couldn’t walk for half an hour and was dizzy and almost walking into walls. Sleeping in that position puts me in a really deep sleep and I’m not sure if it causes me to go unconscious or not. In a funny way, I find it fascinating and weird all at the same time.