My husband last night had a sudden onset of uncontrolable full body shaking. He wasn t cold , no fever , normal vision , heart felt fine, his hand and arms were all over the place and legs bouncing up and down. Lasted about 5 min. then had a short quiet spell. Started up again not as long or as severe then quiet for maybe 30 min and had another lesser episode than the 2nd time. He was alert during them, normal speech and said he didn t feel fatiqued afterwards as well. Any thoughts? Kind of unsettling. Thank you, Dorothy