My 6 month old DS is generally a happy smily chap. However I can't help thinking he seems behind friends babies and those of my NCT group. Whilst all these babies are eating 3 meals a day, sitting up unsupported, rolling all over the place and trying to crawl, DS seems mostly uninterested in solid food, can't sit up (well maybe for a few seconds then leans forward/to side and falls over), rolls very occasionally and is mostly thrashing around during tummy time with the odd push up. Its like he is still a little baby and they are all growing up. I should mention the one thing he doesn't seem behind on is he sleeps through the night. He seems reasonably strong physically in particular his legs - quite sturdy at standing and he will stand for a while just holding your hands, and fairly flexible in that he can easily get his feet in his mouth. I guess I might worry more than most as he had a small stroke at birth but we were advised after an MRI the issues that may come out of that could be subtle hand-eye coordination ones. His hand-eye coordination seems ok to me; grabbing and reaching for objects purposefully. Am I surrounded by advanced babies or is he very much behind what is expected for 6 month olds? I find myself not wanting to go to baby classes etc as the differences seem highlighted to me. I came home from the last one in tears and am thinking I should distance myself from my NCT group slightly as even the whatsapp message group we have just highlights how he is not progressing like the rest of them.