peripheral neuropathy; pain was so great; pain in my left arm has never ever stopped; I have no energy; it is the muscle inside that hurts; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 65-year-old female patient received BNT162b2 (BNT162B2), on 11Jun2022 as dose 4 (booster), single (Lot number: PM0173) at the age of 65 years for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: Covid-19 vaccine (The first one no reaction, the second one no reaction, the third one no reaction), for COVID-19 Immunization, reaction(s): "first one no reaction", "second one no reaction", "third one no reaction". The following information was reported: ASTHENIA (non-serious) with onset Jun2022, outcome "unknown", described as "I have no energy"; MYALGIA (non-serious) with onset Jun2022, outcome "unknown", described as "it is the muscle inside that hurts"; PAIN IN EXTREMITY (non-serious) with onset Jun2022, outcome "not recovered", described as "pain in my left arm has never ever stopped"; PAIN (non-serious) with onset Jun2022, outcome "not recovered", described as "pain was so great"; NEUROPATHY PERIPHERAL (medically significant) with onset Jun2022, outcome "unknown", described as "peripheral neuropathy". The events "peripheral neuropathy", "pain was so great", "pain in my left arm has never ever stopped", "I have no energy" and "it is the muscle inside that hurts" required physician office visit. Therapeutic measures were taken as a result of neuropathy peripheral, pain, pain in extremity, asthenia, myalgia.  Clinical course: The patient stated, "So, she took the vaccine, the 4th one, the booster. The first one no reaction, the second one no reaction, the third one no reaction but at the fourth one, this was what happened on June 11th, she went to take it and that was a Saturday, 24 hours later, of course you are unhurt but for her pain was so great, so huge but she thought this was just normal. But the pain in my left arm has never ever stopped. So, she went to the doctor, and he said, this was strange but she thinks you have peripheral neuropathy. This was very strange and of course everyone does (withheld), you know research and she find out that there were 9 other individuals that had experienced this. So, basically it was going to be a month this Monday and the pain in her arm had not gone away and it was her left arm. She was not anti 'vaccer'. She believes in vaccine. Consumer also stated, "So, basically the pain was so intense the week after that she took a lot of Advil, tons of Advil. Finally, she was able to go to the doctor and he said, this was so strange. So, he gave Steroids and Gabapentin. She thought this is crazy. Why was he giving me this? He should be giving her pain pills. Anyways, by the third day, she could see that the pain was going away. She thought this was so strange but then she finished the steroids and she thought what's going to happen. So, the pain came back, the pain was not as strong as the first week, but her arm hurts so much. It is incredible and she had no energy. It did not hurt to move it. That was what was really strange. But it was the muscle inside that hurts." She was just taking the Gabapentin (treatment). But she hates taking medicines.