This has been happening yesterday and today.
Like yesterday I had just ate a bagel for breakfast and like 20 minutes after that I was hungry. So I ate something else and then I was still hungry! All day yesterday I was constantly hungry.
This morning I had basketball conditioning and before it I had a bagel with butter on it. Then after when I got home I was hungry again so I had a bowl of cereal. Then like about 30 minutes ago I was hungry AGAIN! so I just ate a piece of string cheese and I am getting that hungry sensation again right now.
What the heck is going on?!?

Oh yeah, and I am 14 years old and 5'9" and about 140lbs.
Could it just be a growth spurt?