Both her ears started ringing/some days the ringing is so loud it's deafening; Some days she can't even get out bed the ringing is so deafening and debilitating; The ringing won't allow her to sleep soundly; She does not wake up rested; Some days she can't even get out bed the ringing is so deafening and debilitating; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) for a Pfizer sponsored program.  A 64 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 20Mar2021 14:20 (Batch/Lot number: unknown) at the age of 64 years as dose number unknown, single for covid-19 immunisation. Relevant medical history included: "concussions from banging her head" (unspecified if ongoing), notes: Verbatim: history of concussions from banging her head. The patient's concomitant medications were not reported. The following information was reported: TINNITUS (non-serious) with onset 25Mar2021, outcome "unknown", described as "Both her ears started ringing/some days the ringing is so loud it's deafening"; BEDRIDDEN (non-serious), ASTHENIA (non-serious) all with onset 25Mar2021, outcome "unknown" and all described as "Some days she can't even get out bed the ringing is so deafening and debilitating"; SLEEP DISORDER (non-serious) with onset 25Mar2021, outcome "unknown", described as "The ringing won't allow her to sleep soundly"; POOR QUALITY SLEEP (non-serious) with onset 25Mar2021, outcome "unknown", described as "She does not wake up rested".  Additional information: Expiry Date of Covid 19 Vaccine: Unknown. Reporter (caller) was calling about the Covid 19 vaccine on behalf of his wife (patient). He would like to add as a side note that he, the caller, had both his Covid 19 vaccines, both were Pfizer, he had zero side effects. However, the reporter's wife went and signed up and got her first Covid 19 vaccine on 20Mar2021 and about 5 days later both her ears started ringing and they haven't stopped ringing. Some days the ringing is so loud it's deafening. The caller has two questions. Is there any suggestion on how to get that ringing or tinnitus, to stop or subside. Secondly, she is scheduled for her second Covid 19 vaccine tomorrow, 10Apr2021. Should she get her second vaccine? The caller reports his wife's ringing in her ears is not staying the same and it's not getting better. Some days she can't even get out bed the ringing is so deafening and debilitating. The ringing won't allow her to sleep soundly. She does not wake up rested. The caller is pretty sure his wife received her Covid 19 vaccine in the left arm. The caller received both his Covid 19 vaccines and had no side effects and he thinks that gave his wife a lot of confidence to get her vaccines. When probing medical history and concomitant medications the caller reports his wife banged her head and she's had some concussions. He thinks she's had 3 concussions. She wasn't experiencing any of the effects of concussions, like any headaches, any concussion effects for quite some time. He doesn't believe they were serious concussions. They were just concussions from banging her head. The caller reports his wife is on a number of medications for different ailments. He reports she's been taking those medications for years. There has been no recent change in her medications. He reports his wife sees a chiropractor on a regular basis. His wife has discussed the ringing in her ears with the chiropractor. The chiropractor tried to do what he could to diminish or reduce the ringing. Nothing he's done has had any effect on the ringing in her ears. Any investigating that his wife has done about the ringing in her ears has been from online. Patient may have called her doctor's office and the answer is we don't have any idea what causes the ringing in her ears or how to stop it. Reporter was asking what we can recommend so that the ringing in his wife's ear will subside and also asking if it's okay to proceed with her second dose.   No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.