Does the first chapter of my book sound good? any suggestions?

There it was. The waterfall was no different than usual. At first, I thought it was my eyes seeing the streak of red flow down to the base of the falls, then I knew it wasn’t my eyes when the whole thing turned red. Then something seemed to fall as well. A shape of some sort. I crept closer to take a look.
The human body surprised me so much that I jumped back.
I woke up drenched with sweat. I glanced at my clock. 6:30 am. I had been asleep for nearly three hours. Sleep wasn’t exactly my forte, but I just couldn’t help it. Sleep just never hit me well.
It’s a good thing it’s the weekend, I thought aloud. Down the halway my grandfather would be asleep. I had lived with my grandpa for around ten years now, I came here when my parents got in that wreck. Grandpa had lost Grandma in a fire before I was born, she was cooking while he was at work, and somehow the house, and Grandma, burned.
May as well fetch myself some cereal, and at that thought, walked down the four flights of stairs to the kitchen.
Grandpa shouldn’t have a bed room on the fifth floor of this house. Why does he live in this huge place anyway? I pondered, You’d think an old widower with a back condition would get a smaller place. And a newer one at that.
Grandpa had bought this mansion after his old house burned to a crisp. It was built in the 1800s and still looked pretty new, but still allitle out-dated. If you liked victorian stuff, the place would be perfect. If you were like me, however, the place would be a total nightmare.
I got the cereal out of the pantry and poured my milk on it. Grandpa’s words rang around in my ears, “Eat too much of that cereal, Beatrix, and I’ll be signing you into the hospital!”
I had no idea where he got that. As I pondered the possibilities, I got that feeling in my head again.I stopped eating my cereal and quickly grabbed my head. I didn’t want that feeling again.
“What’s wrong? Headache?” A voice asked me. I turned around and sa