Hi, !
I am so sorry that happened to you! Have you talked to your doctor about the episode you experienced? I know some of our members have experienced similar episodes, but I still would make sure you talk to your doctor about this (if you haven't already done so). Here's just one piece on the topic of random episodes of leg weakness -- https://multiplesclerosis.net/living-with-ms/what-does-leg-weakness-feel-like. There's also many, many pieces on the topic of digestive issues and MS, so you're not alone in dealing with that.
Did you notice if anything triggered the episode? There doesn't have to be a trigger, but some individuals notice that something triggered an episode of muscle weakness (overheating, extreme fatigue, stress, etc).
Anyway, I hope you don't experience another episode like this again!
Best, Erin, MultipleSclerosis.net Team Member.