Uncontrollable shaking of the body from the neck down?

8.00pm uncontrollable shaking of the body from the neck down to the hips. Body and brain wants to explode. No balance when I stand up. Have a history of Pagets Disease in the lower lombar region. Aged 90+ omly take caltrate and Vit.D This pain etc. has eased somewhat and it is now 10.30 am. Do I need medical attention ?

Age: 90+
Medications: Caltrate and Vit.D
General Information: Not as yet. I do have a reaction sometimes when spraying acrylics which I did yesterday.