can a baby of 6-8 weeks suffer from infant shudder syndrome? My great-grandson shudders (I have not seen it myself) but his mum and grandma have. My daughter thinks it might be a fit, but the babies mother says it excitement and undeveloped muscles etc.
The baby sleep anywhere from 8-10 hours at a time and then breastfeeds most of the day. He is also relatively small, doesn't put a lot of weight on but smiles all the time and looks okay.