My DC2 is 2 and I still have a 2-3 finger gap in my stomach muscles and a mummy tummy pot belly. My stomach muscles often ache with a defined area of pain above my waist and it's very uncomfortable if I have a big meal. I do Pilates once a week but it isn't a focused post-natal class (and I don't think the teacher has post-natal training), although I do protect myself and sit out the exercises where I can feel the strain/bulge in my tummy. I sometimes feel an improvement for a while but it usually reverts.
Am I just lazy and need to do more/better exercise, or is this now a medical problem and do I need an operation to close the gap? I have always assumed I could sort this out myself (as I did after DC1) but am beginning to wonder if I need to see my GP about this ...