I have found my Startle Reflex control has regressed with MS. The Startle Reflex can be seen in babies, a very basic neurological reflex (stiffening of body, etc.), less seen as we mature unless something happens to elicit it and ideally for self-preservation. Startle reflex is momentary but on-going panic attacks should be treated with help of professional. MS has made me more jumpy and when I taught Emotionally Disturbed teens my way was never let them see me sweat. Cool and collected back then, now not so much. I get discombobulated easier now. Always the question for me-age or MS?