Hi, These kind of hand tremors could be associated with fatigue, stress, anxiety or a form of panic attack. Other possible causes of tremors could be overactive thyroid, alcohol use, certain medications, alkalosis, and low blood sugar. Sometimes previous injury may cause pinched nerve and may be a reason of tremor but this possibility remains low. Therefore, it is quite essential to thoroughly assess the all possibilities here with the help of a doctor. Hope this helps.
any stress? that could cause the shaking. it could also be that there is no problem and your hand just started it, in that case it is called essential tremor