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Head is about to explode.
Remedy: Remove body... run away and hide.>>
Bwuahahahahahahaha!

"Remove body"....classic!
Ahem, <gets all official> Clarkmo has the right idea. Your pulse is always pounding (if you are alive, that is) you just can't hear it, normally. When your ears get clogged from too much wax or when the middle ear gets clogged from high altitude, air is compressed within the ear canal and your pulse (heartbeat) is amplified within the ear canal, allowing you to hear it. Sometimes painfully, as I experienced when I was a child; I had many inner-ear infections.
Clean your damn ears! :Q Q-tips are $2 a box! Take a shower and let warm water run into your ear. Tilt your head and keep the water there for a minute. Rinse. Repeat at least 3-4 times. You will be amazed (and disgusted) by the amount of wax and crap that comes out of your ears. Ewwwwwwwwwwwwwwwwwwww.