Hun, I'm 5'4" and almost 18. I weigh 135 and I'm considered skinny. The only reason i weigh that much is because of muscle. So at 5'4" and 104 lbs, no that is not over weight. Heck if I lost enough...
that all depends on how tall you are...... if you are unusually short you might be overweight..... if you are average in height or taller than that you probably arent