flat head?

well, we have noticed that jack has been getting a bit of a flat head. hmm... to try to remedy this little problem, we have started to sit him up instead of lay him in his swing or on the floor. so, we pulled out the old exersaucer and purchased a bumbo. jack seriously loves the bumbo and will sit in it forever, and he has started to play with all his toys on the exersaucer. hopefully, these two things, mixed with some extra tummy time and a daily head massage, will prevent him from having to wear... 'the helmet'. only time will tell.