100% deaf, she couldn't hear a thing/ by 11 or 12 that same day, her hearing started to come back; This is a spontaneous report from a contactable consumer. This consumer reported for self that the 78-year-old female patient received first dose of bnt162b2 (BNT162B2, Pfizer-Biontech Covid-19 Vaccine, Lot#: EL9266) via an unspecified route of administration on 14Feb2021 via injection into left arm at single dose for covid-19 immunization (COVID Protection for herself and so that she won't give COVID to anyone else). Medical history was none. There were no concomitant medications. The patient experienced 100% deaf, she couldn't hear a thing (medically significant) on 15Feb2021 with outcome of recovered.  The patient underwent lab tests and procedures which included blood pressure measurement: good the consumer did not have a stroke , body height: 5'3- 5'4  states that she has been shrinking , body temperature: good the caller did not have a stroke, blood test: blood work done in the fall but it was all fine. The consumer says, "I no problems with it. I came home, went to bed, I guess sometime during the night it happened. I got up at 6am- 100% deaf!" The consumer says she was unable to couldn't hear gas stove turn on, couldn't hear the fridge shut, couldn't hear the microwave go off, couldn't head the phone ring. The consumer went to walk in-clinic. Hearing started coming back while being seen by the PA. The consumer was given "5 prednisone pills to take if hearing doesn't come back, and was told to have them on hand in case you get the 2nd shot and it comes back". The consumer says, "I can hear perfect now". "It was a matters of hours". The consumer "searched it" and read that this is very rare side effect, but temporary. The consumer asking if she should I get the 2nd shot in 2 weeks, because she heard the side effects with 2nd shot, could be worse. Caller asks, "If I get the 2nd dose, will the hearing loss be temporary again or will it be permanent?" The consumer states that last Sunday, she had her first dose of the COVID vaccine. The consumer states that she had no aches, no pains, no anything. The consumer states that sometime in the night, she got up, and was 100% deaf, she couldn't hear a thing, not one thing. The consumer states that in the morning she was standing in the kitchen and saw her phone blinking and she couldn't hear it ring. The consumer tested her hearing by putting half a cup of water in the microwave for 30 seconds, and she didn't hear the beep when it was done, she heard nothing, it was zero hearing at all. The consumer couldn't call anyone cause she knew she would not be able to hear them, and it was 6AM. The consumer states that she waited until she knew her daughter would be up, and the consumer texted her daughter and explained what happened, and the consumer's daughter tried to call, the caller's primary care doctor, but they put the consumer's daughter on hold and then hung up on her. The consumer states that her daughter texted someone at Pfizer, and they did not answer, so by that time it was 1030 or 11AM, and the caller drove herself to the walk in clinic. The consumer states that slowly but surely, her hearing came back. The consumer has some questions including, should she get the second dose of the product? Caller also states that she heard on TV that the second dose has stronger side effects than the first, and so she is wondering if that is true, and if she can expect this side effect to come back again with the second dose? Height: The consumer is 5'3- 5'4, and states that she has been shrinking. The consumer states that she read some of the side effects include, nausea and fatigue, she did not have any of those, and her arm was not even sore. But, caller states that this even scared her. The consumer states that by 11 or 12 that same day, her hearing started to come back. The consumer had driven to the walk in clinic, and at first could not hear what the staff said, but it started to come back while she was there, and she did not see a doctor, she saw a PA who gave the caller a prescription for 5 pills of Prednisone, and told the caller to not take them unless the deafness comes back, or gets worse. The consumer has not taken them because her hearing did come back. The consumer wants to say that she has recovered completely, but she does not know if it will come back with the second dose of the product, so she is unsure. The consumer states that she has not seen her grandkids in a year and a half, because they were afraid to come visit her because they did not want to give her COVID. The consumer confirms that she received no other vaccines on the same day. The consumer states that she did have a flu shot in the fall, but that is all. The consumer also had blood work done in the fall but it was all fine. The consumer states that when she went to the walk in clinic, the staff took her blood pressure and temperature and asked her to squeeze the PA's hands and stuff, and the PA said, good the consumer did not have a stroke.