Did my seroma wreck my tummy tuck?

Drains out after 16 hours. I was told I may have turned over wrong and separated some skin from the muscle creating a hole which filled with fluid.My seroma aspirated for 300ml and after 3 weeks it was down to nothing. When I move/bend my stomach feels like it is "pinching" and I am worried the skin is not adhering properly. Has this wrecked the tummy tuck? My PS says everything will be fine in the end but I notice a little "pouch" of skin in my lower abdomen above the scar line.8 weeks post op.