Quoting Lillybutt's momma:" That sounds like teething. Pulling of the ears isn't a way to tell if he has an ear infection"
Pulling on the ear is also a sign that there is a possible ear infection.
Other signs of teething are excessive drooling and biting. Fever tend to have a high grade fever rather than a low grade one. The crying will be constant as well instead of intermittent like in teething where baby only cries when there's pain related to teething. And with ear infections, fluid is formed in the ear so try to see if there's any discharge from the ear.
Sounds like teething. When my daughter was teething, it was just like that when her molars came in. She would pull on her ear and cry and tell me that her head (her jaw area towards the back of her head by her ears) hurts and she would have a low grade fever. Took her to the doctor for possible ear infection. It wasn't it.