Oo normal yan, sis! A few of us with 8-month-olds noticed the same thing, parang mas maraming saliva talaga when they're teething, at sometimes bumubuwal talaga sila kasi of all that drool and swelling sa gums. Pero kung sobrang dami ng pagsusumukal or may fever pa, better check with your doctor na lang para sure, lalo na at that age, want to rule out kung may iba pang reason besides teething.