My little boy is 4 months old. I think he's teething as he's chewing his hands and got very clingy. He also struggles to poo and today he's been screaming when he's needed to trump or poo. He never normally screams so much and he screams when I pick him up or put him down. He screamed his self to sleep and I cheaked on him and his temp is 35.8 and he feels cold to touch his head but he's really sweaty. Could it be due to teething?