Pulling at his ear

Ni

Looking to see if anyone else experienced this. My 10 month was sleeping bad and started pulling at his ear, went to the doctor's Friday and they said his ears were fine but his throat was red. He was still sleeping bad but has no other symptoms. Yesterday afternoon he started to become clingy and that is a big red flag for me because he only does that when he doesn't feel good. Went back to the doctor's because he's still tugging at his ear and they said everything looked good, even his throat. He seems fine but I just feel like something is bothering him but I don't want to keep going to the doctor's. Has anyone had anything like this? Also he has no sign of teething and when he does have teeth come through they never seem to bother him.