I'm sorry, but I know this is not what you'd like to hear, but... there might be something wrong. I'd get to a doctor asap. Screaming can lead to voices, and the voices can make you do bad things. This is a sign of dementia, I think, but even if it's not then you still need to get it checked out!!! Double numbers might be vision problems. And the reading thing isn't good either. PLEASE do yourself a favor and get to a doctor! You'll thank yourself later! It might be nothing, but BE SAFE! Don't risk your health! I'm only 13 too, but I KNOW that this is not normal. Good luck!