B.L.
I would look into primary reflex integration therapy. Here's a link that explains all the reflexes: http://www.moveplaythrive.com/Un-integrated_Reflexes.html Scroll down to the portion that talks about oral/grasping & foot reflexes. Unintegrated reflexes cause a lot of challenges, but fortunately integrating them is simple movement therapy. Our son has developmental delays and we've been doing this therapy for 4 months, and we've seen huge improvements.
HTH,
B.