I'm 16 and for awhile now my tummy has been feeling hard but it's not totally flat. I'm like 5'11 and 147 pounds and I've been trying to lose like 20 pounds. I'm going to the gym also. I'm not active in that way either so I'm not pregnant.
Most Helpful Guy
if there's no pain, don't worry. you've just gotten firmer from building some abdominal muscle.
If there is pain, then go see a doctor.0