I keep having this pumping sensation in my throat. What is causing that? It just started last night when I was trying to go to sleep and has continued throughout the day. I can actually see my neck doing little jumps. It doesn't hurt and I don't feel an

Corrigan's pulse? You seem to be experiencing a carotid pulse disorder. This may be a 'water hammer' or 'corrigan's pulse'. You need to be seen by a physician for a proper diagnosis.
In . In the throat or outside of the neck? Most likely due to the carotid artery. I don't know your age, but as we get older the carotid can bend and twist. That can make it more prominent if the becd is pointing in a specific direction--either toward the skin or into the throat.