My LO has been so alert since they were born, constantly observing what’s going on around them. As they have got older they have become increasingly wriggly during wake windows - the arms and legs are always moving if they’re happy during play, or when they are frustrated getting changed etc. They are 5 months old now and I feel I am constantly comparing them to other babies around the same age at baby groups. They all seem to be able to sit/lie still and look so chilled. It’s making me so worried about my little one. Has anyone experienced similar?