Today July 26, 2007 around 7:00 p.m. I went outside to walk around the block with my boyfriend. As I was walking I felt my head very cold and had a sensation of something inside my head dripping down like liquid and I freaked out. When I felt this, I felt my head getting number and air pushed inside my eyes. It felt like a balloon expanding and when I felt something moving around and falling down from the top of my head, I thought my brain was going to fall down or my skull just wanted to slip down. I felt alot of pressure on the back and on the front of my head. Could this sensation be the cause of the medicine I am taking (Amoxicillin) or could my head react to that sensation because of a panic attack.