My right hand tends 2 shake quiet a bit;i can hold it out & it just constantly shakes; really bad when holding something;what could be wrong? I'm 31.

Essential tremor. At your age, this is likely essential tremor. Et occurs with use, such as handwriting, holding a cup, or using a spoon. Parkinsons tremor tends to occur at rest, and is associated with other symptoms. It is rare in someone your age. See your physician - there are simple treatment for et.
Need more info. Tremor has a number of causes/exacerbating factors. See your doctor for work up.