Talk to General Physician on Pulse And Pain Near Belly Button

Hello, I had pulse in belly from childhood but from 2015 I started feeling a little pain in that area whenever I was hungry or like a feeling of vomiting.

I had doubt of Abdominal aortic aneurysm but I am skinny so I thought it is normal.

My posture is also not correct I can't stand straight for too long. Today I tried it and when I pressed that belly area it was a little bigger I quickly went to my normal posture and that area was again normal.

please help me to know if it is AAA or not.

thanks.