Hello! My name is Carolina , i m 29 years old, I m a healthy person, 1.70 and now my weight is 65kg. take vitamins, eat healthy, drink more than 2 liter of water every day, I don t train too much but I walk long trips instead. The only thing I ve been treated is that I have iron deficiency, nothing serious.This is not a question of urgency. But I wonder if this can be normal or it should be treated.There have been occasions (3 times actually) when I couldn t remember the word headache even in spanish, and this is my native language, or remember something like my age, but I have a very good memory. Few occasions I get a headache and i lose the vision in one eye, but I just have to sleep and then it goes away. Also it has happened to me few times that I m sleeping and awake but I can not wake up and after few seconds I can open my eyes and wake up, but it s a scary feeling.Thanks and greetings.