Who replaced you?

Each day you get worse,
with each little minute your head is pulling you in. 
We try to help you,
but there's no medicine for that.
So, when will the tide change and let you have a "regular" life.
Or is Life just not that kind. 
Was this your future when you hoped you would become a doctor? 
Could you have saved yourself if you were? 
I don't know but I want to go back to the days,
when you weren't yelling at me,
when you were riding bikes with me down at the park.
The days where you would drive me to get ice cream.
The days when you would hold my hand crossing the street,
and I would feel your cold dry skin become warm from mine.
The days when you would get up at the crack of dawn just to go fishing. 
I know that's not you anymore though, 
I watch from your doorway as you sleep until ten.
I watch as you slowly grow away from me. 
I watch as the brother I knew become someone I don't. 
So one last thing stranger,
"I miss you,"