Anyway, obviously I'm going back to the GP for another referral to someone who will know what it is and may be able to give me some advice! But just wondering if anyone else has experienced/knows someone who has experienced the same problem. Basically, when I lay down, I have a flat stomach, when I do a sit up, you can see the ridge, vertically, down my belly where the muscles don't meet, my belly button is always an 'outie' (none of these things really bother me) but when I stand or sit up, my belly hangs out and it looks like I'm pregnant. It's not flabby, it relatively hard, and round like a beach ball.

Thanks!
My tummy is similar and i believe it is due to my abdominal seperation and hernia. That really sucks, what do you think about the info you were given, did it sound right? do you think you were listened to and examined properly? If not, maybe seek a second opinion.

Have you seen a women's physio?