I sometimes experience the urge to shake my hands at random times. By this I mean that I feel the need to move my on an axis. I rotate my wrist and keep my hand stiff as it is rotate back and forth with extreme frequency.
When I get the urge to enact this behavior I usually experience a sudden sort of swelling feeling move up from the core of my body. A tension builds in my chest that does not release unless I grin in a way I can only describe as maniacal. That is to say, I feel the tension in my chest until I smile so broadly that all my gums are showing. This smile I make is entirely unnatural and I would never make that expression when smiling naturally.
The whole experience lasts for about 2 and a half seconds from the start of the tension building until the tension is released by a grin.
After performing this behavior I experience an extremely brief rush as the tension is released. It feels almost like a surge from my chest towards my head. This surge of energy only ever occurs after shaking my hands and making the grinning/maniacal face. After this release I immediately experience a brief downer period in which I feel as though I have spent a large portion of energy.
It is important to note that this is NOT involuntary. I don't have to execute the behavior, I simply experience the urge. After resisting the urge to execute this behavior I experience a short feeling of unease, a sense of deflation that manifests as the tension previously describe growing briefly before fading without a feeling of relief. I still experience a brief downer period as stated above.
I am 23 years of age and I have experienced this sensation as long as I can remember. It has not truly impeded my day to day functioning. I do have a degree in psychology, so I have looked into this myself, but I have had limited results as I do not have any diagnosis of mental disorder or of compulsive behaviors.
