Internal ear infection, fluid in ear (went in during swimming or during a shower bath or due to infection), or impacted wax can be a problem. TMJ and infection
, exposed nerve endings of tooth
can be a problem. Infection in the eye, glaucoma, near and far sightedness and sinusitis are the other causes. It is difficult to diagnose the cause without examination. You will have to consult your PCP when your cards come in and maybe need a referral to an ENT, eye specialist and a dentist.