Starting back in 1998 (i was just 62 at the time) I experienced a weird, scary sensation one afternoon. It was as though my body suddenly wanted to go limp unless I tightly clenched the muscles in my arms, legs, feet, hands, fingers, toes, and jaw and that if I did not I was about to go, well somwhere else. It lasted about 30 seconds, I was conscious and aware of my surroundings. I had 3 more attacks of this over a two day period and then nothing at all until 2002. Since then it has occurred on an irregular basis; waking, standing, walking, or sound asleep at the onset. I have had mris for several unrelated matters; peripheral neuropathy and autonomic dysfunction, but the only thing of medical significance found was that i'd had a silent stroke at some time in the past.

Am I suffering some form of seizure or is this something entirely different? My neurologist hasn't found an explanation for my problem.