My mother in law just went to er after passing out. She said in the last few days she has had severe headaches, slurred speech, blurry vision, her leg gives out on her, and today she said she didn t feel right and passed out. When she came to she seemed confused and kept asking where she was ( in hr backyard) and said to call 911. They have given her pain melds, but she still has a really bad headache. What could be the problem?