My 10 month old seems to have plateaued in his weight. Around 7-8 months he stopped putting on weight. He was averaging around 10-12 lbs a month. Now he's been stuck at 80lbs but I can see his head and chest starting to blow out but he only added about 5 lbs. Is this normal? I just hope he's I between growth spurts. He has 4 cups of taste of the wild large puppy a day.