My 18 month old toddler shows signs of leaning to one side when he walks and I see he lifts his left shoulder higher than the other. GP has said that it is probably just adjustments whilst learning to walk but he wasn't particularly still when being examined. Is there a visible difference or am I just being paranoid? I have untreated scoliosis myself and have suffered from back pain and posture issues so I'm particularly vigilant about this. Here are photos of him where I think the left shoulder looks higher. What do you think?