I'm not sure on this but I think that intention tremors are more a part of diseases like Parkinsons. The tremors with MS seem to be more generalized and may be related to exaccerbations and/or stress (all forms). The tremors may seem more pronounced in the extremities (hands) when trying to do something though.

I've had a whole body tremor going for the last couple of months which varies in degree. Sometimes it is so severe that my head is shaking too much to read or see clearly (double vision).
A trade off is Baclofen, which takes the edge off for me...but leaves my body too weak and my mind too stoned to do anything meaningful.

Hope that you get some answers and some effective treatment underway.

With love, Erika