My 15th month grandson old throws his head backwards and in the last 2 weeks the behavior has gotten worse he now hits his head from side to side on the top of his playpen and the chair arm. He also has been going through a biting stage where he tries to bit me and his Mom. Last night his Mom told me that he banged his head on his crib, as well. I have tried to comfort him when he does this as well as trying to protect him from hurting himself. When he started to do this; I would tell him No and after 3 warnings, I would put him down in his playpen and leave the room. This worked for about 3 weeks; but once he started hitting his head on the top of his playpen, as well as other hard surfaces; I ve begun to become more concerned. Is there any other alternatives to correcting this behavior? I would greatly appreciate any advice you could give me, as I am his caregiver because his Mom works really long hours. Thank you, Sincerely, Sara J. Carneal