Hey im 17 and about 130 lbs at 6 feet tall. I am too skinny I think and would like to gain and keep weight. I say keep becuase one week I can gain like 5 lbs and lose it the next. I suspect my metabolism to be extremely high. I remember back when I was about 14 I was a little chubby, whats the deal!?
So can someone suggest what to do. I...
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