Swollen stomach after birth

Hi IMs
I gave birth to my beautiful daughter almost a year ago via c section. The issue is, it is 11 months post birth and I still look 6 months pregnant. My stomach is quite swollen and distended. I’ve had an upper abdominal scan and it was normal. Could it be fluid retention, or diastasi recti?
I am not body image obsessed but it’s getting me down.
Anybody been in or is in this situation?