Open Question: what is wrong with my ear?

my ear been when i yawn it will pop and then it will hurt feels like its plugged up but i cleaned my ear and there was nothing in it.. is it an ear infection? i did have a cold.. i had a sore throat and been sneezing alot and then i have a stuffy and running nose but all that went away but my ear still hurts when i yawn and then it pops and it sting/hurts when it does it.. should i go to the doctor?