Bell's Palsy; Guillian Barre Syndrome; lock jaw; the left side of his face went numb and he lost feeling on the left side of his face and head; couldn't breath with collapsed muscles and nerves; couldn't breath with collapsed muscles and nerves; couldn't breath with collapsed muscles and nerves; he couldn't speak and had slurred speech; went to drink water and couldn't; fatigue; he went in he had to wait 14 days for the 2nd one and he went in for the 2nd one on 5May2021; This is a spontaneous report from a contactable consumer (patient himself). A male patient of an unspecified age received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, lot number was not reported) via an unspecified route of administration on 05May2021 as single dose for COVID-19 immunization. Medical history included dental operation performed in 1983. The patient's concomitant medications were not reported. On an unspecified date it was reported that, the caller had both doses of the Pfizer Covid-19 Vaccine. His second dose was 05May2021. He took a lot of medications. When he received the second dose, he asked the nurse at the VA if any of his medications can cause an interaction. About 14 days after the second dose, he woke up with lock jaw, he was now getting his feeling back on his face. He was diagnosed with Bell's Palsy. Caller believed what he experienced was Guillian Barre Syndrome, because that caused paralysis in your face and lock jaw. Caller was asking as Bell's Palsy as side effect seen after receiving the Pfizer Covid-19 Vaccine or not. Caller stated he was calling about the Pfizer shot, he has had both. Stated the 1st one when he went in he had to wait 14 days for the 2nd one and he went in for the 2nd one on 05May2021 and he tried to ask the nurse up at the VA, he was on a lot of medications, would he get a reaction and she told him to get in line for the shot she couldn't tell if he would get a reaction. Caller stated his mouth he would get a cramp on the left side of his jaw like little cramps after the 2nd shot and he waited 14 days and the left side of his face went numb and he lost feeling on the left side of his face and head. States he went to the VA and asked them could that cause a reaction or GBS, Guillain-Barre syndrome, and asked about that and they told him that the Pfizer wouldn't do that. Caller stated he had dental surgery in the military and only had 1 condyle and his left side of his jaw locked up and he woke up and couldn't breath with collapsed muscles and nerves. Stated he called the VA to find out and was told to wait until Monday and called in Monday and couldn't get anybody to answer and had an appointment for Wednesday and they called him back on Tuesday. Caller stated they told him to to go the ER and they told him he had Bell's Palsy. Caller states he did not know if the shot caused that, he knows his jaw locked up and he couldn't speak and had slurred speech. States the feeling in his face was coming back, it was still a little numb. Caller was asking could the Pfizer shot cause Bell's Palsy, the numbness in the face and nerves and jaw locking up. Stated on the left side the condyle locked up and he went to sleep and woke up early and went to drink water and could not. Stated they tried to tell him that his jaw was from his chewing, and he wasn't eating solid foods he was eating soft foods, from the fatigue on the left side from the right side condyle being gone. Caller states his jaw has been like that since 1983 when he had dental surgery done. Stated he used to get cramps once in a while but it locked up after the shot. Caller stated he wondered if it was GBS because they were talking about that with J&J. Caller was asking if GBS causes Bell's Palsy. Stated you can lose nerve feeling in the face, and leg and he didn't lose it in his leg or body just the left side of his face. Caller stated the feeling came back and he can now close his left eye and they tried to give him some Prednisone and he can't take that it made his blood pressure go up, he let it relax. States they have him some spray for his face and some stuff for dry eye. NO further details provided. Stated they told him he has Bell's Palsy and he had the shot and 14 days later that is when this started after the 2nd shot. Stated he was still weak on the left side. Caller stated he had the feeling in his face go he didn't have any sickness or none of that what all the stuff they said. Caller stated the stuff he had was caused by military and he doesn't know if it was an allergic reaction. States he was wondering about allergic reaction. The reporter seriousness for lock jaw, the left side of his face went numb and he lost feeling on the left side of his face and head, couldn't breath with collapsed muscles and nerves, couldn't breath with collapsed muscles and nerves, couldn't breath with collapsed muscles and nerves, he couldn't speak and had slurred speech, went to drink water and couldn't was unspecified. The outcome of event the left side of his face went numb and he lost feeling on the left side of his face and head was recovering while outcome for all other events was reported as unknown.  Information on lot/batch number has been requested.