Is this a tremor? if not what is it? should I be worried?

[karmajjj123]

I punched a punching bag with gloves on for the first time, everything was good and felt ok, I did not punch at a wrong angle or anything like that, what I notices was even though I had not been punching very long, I was not tired but my hands were jittery afterwards, especially if I tilted my left hand to the left it fully shook out of control, large tremors, aside from people saying that my hands were not used to it, can this be considered an essential tremor? I notice that my hands are fairly still but sometimes in certain anles they do shake, im a 28 year old male, I do have small wrists even though the rest of my body is pretty large, an ex of when it could shake is mostly when I tilt my right hand to the right or my left hand to the left, they shake, what is it? is it a sign of anything bad now or in the future? is there a way to stop it? any treatment?