my pup is teething, and now his teeth has grown and if he chews on our fingers well it become a habit? and basicly he chews on everything he thinks he can chew on. also near the end of the night when its almost bed time, he becomes extreamly hyper. he runs around the couch 5 times and then bites something or one of us, pretty hard not a soft chew. well is go on? or something? im just worried. this is my first.