hi my name is maria lily, and i'm trying to gain weight!
i'm trying to gain 5 to 10 pounds in atleast a week. is that possible?
or atleast see a difference in my weight in a week?

Gaining more than 4 or 5 pounds in a week is dangerous, especially for someone small. Try to gain more like 1 or 2 pounds a week to be safer. What you should do is increase your caloric intake, but not in junk, try to eat regular foods. Also, you can exercise ( I know this sounds weird, but trust me) to increase muscle mass (which weighs more than body fat).

possible, but i agree with charlotte234s, also dangerous. you might be interested in ensure plus. they're designed to help ppl maintain a healthy weight and i know they can help you gain weight too cuz my grandma started drinking them and she gained a few pounds