For several years now, I have had these moments (they only last max 10 seconds) where my vision gets blurry and I can't see properly (my dad threw me an apple to me once and I was unable to see where it was let alone catch it, he said my eyes were "shaking", like when you're in the car and your eyes flick quickly from one thing to the next) and I shake, forcing me to hold on to something to not fall or collapse. On seperate oocasions, I don't know if these two problems are related, I loose control in my legs and have to sit down otherwise I feel like I will collapse and they start shaking so my walking becomes weird. I can't really move them properly, but once I sit down I feel fine and can get back up. Both occur without pain in my body and have been going on for several years now.