Really hurts to swallow on the right side . under the back of my tongue , down my throat and there is a little pressure in ear ?

Throat infection: You can have a strep sorethroat, rapid strep screen can detect this. On examination you may have infectious mono, herpeslabialis, The ear is affected due to their interconnecting plumbing so to speak.You need to see a doctor, your primary care physician should be able to handle this.

Infection, sore?: It could be an infection or a sore, aphthous or other. Do you have a fever?