2. 5yrs child has pain behind right ear.

My Daughter is complaining about pain just behind her ear. She tripped from the bed and fell on the floor, yesterday morning, but she didn't complain, when we checked there were no signs of swelling, she has no fever, nor any vomiting symptoms. Last night before going to bed, she started cryingholding her head just behind her right ear. Then she slept well through the night, but was sleeping on the right side, as it felt like trying to sleep with right side helps keep the pain low. Since morning, she is complaining that her head hurts and not her ears. We rushed her to hospital, but today being Sunday couldn't get hold of any Pedeatrician. The doctor wasn't able to point out much and externally everything seemed normal. He gave some pain killer. But since our daughter is not eating much, we are not giving her medicine either. She is just trying to sleep, resting her right side on her mother. Can't figure out what could be wrong? Would really appreciate some help, guidance here. Thanks