I am the mother of a 5 1/2 month old boy. He still has a significant head lag and has very poor muscle strength. He can't reach or grab and has a very poor grip in his hands. He also holds his arms and and hands inwards with his palms facing outward. That seems very odd to me. My pediatrician is sending us to a neurologist for further testing but we can't get in until the end of July. Is there anyone out there who has experienced this before? He is a very happy baby and laughs and smiles and uses his voice. I'm just very worried about his motor developement.