Hello i have a question about body shape i have this indentation in my stomach about 3 inches below the belly button i've had it for a very long time. i am about 170 lbs and 5'4". i work out on a day off day on basis with basic exercise?

Let it be: Since the "indentation" is not causing any symptoms, let it be. If it is a cosmetic issue you could have it removed, though I would not recommend that because any surgery will leave a scar, no matter how small. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs.