My best mate adopted a girlie bun (Dusty) which she was told was about six months old so she took it to the vets to be spayed so she could bond it with another bun. She's just found out that actually the bun was only 3 months old when she got her, so the absolute most she could have been was 4 months when she was spayed. The vet obviously carried out the op without noticing any problems and Dusty has been fine since. Is it likely to cause any long term problems for Dusty?