this made her very depressed; mouth dry; she could hardly walk; her joints were hurting very very badly/her hips and knees were hurting; all her body hurt; she has excruciating joint and bone pain to the point that she thought she had bone cancer; This is a spontaneous report from a contactable consumer (patient) via Medical Information Team. A 67-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Batch/Lot number and Expiration date: Not reported) via an unspecified route of administration on 03Mar2021 (67-year-old at vaccination) as a Dose 2, single for COVID-19 immunization. The patient's medical history included arthritis. There were no concomitant medications. The patient previously received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Batch/Lot number: Not reported) via an unspecified route of administration on an unknown date as a Dose 1, single for Covid-19 immunization. The patient stated she received the second dose of the Pfizer Covid-19 vaccine, she felt her mouth dry, she told the people at the vaccination center, they put her in an observation room, took her pressure and everything was fine, only symptom was the dryness, but eventually it went away. That night she could hardly walk since her joints were hurting very badly. The patient stated she had arthritis, but never had pain, it was controlled very well, but after the second dose of the vaccine all her body hurt, she could hardly walk, her hips and knees were hurting and all her joints. She took Tylenol, the next day she was much better, but with time the pain came back. Yesterday she was in excruciating pain and she took Tylenol again. She stated after the first dose she had a severe reaction, ended up in the hospital, but she was told she could get the second dose of the vaccine. She wanted to know why the vaccine triggering the joint pain. She would like to know how long after receiving the second dose of the Pfizer COVID vaccine will protected from COVID-19. She stated she read what she told her, but she wanted to check and make sure what she read was correct. She would like to know why Moderna protection lasts one year and Pfizer only lasts 6 months. She would like to know what was supposed to happen in 6 months would she need a booster or another series of the vaccine. The patient stated she reported adverse event already. The patient stated she received the first dose of the Pfizer COVID vaccine and she was nauseous afterwards the first day. The next day she was fine and able to move around and do her daily activities. The patient stated she received the second dose on 03Mar2021, and she has excruciating joint and bone pain to the point that she thought she had bone cancer. The patient stated she contacted her doctor because the pain was so bad, but he was out of town. The patient stated she took pain killers and a sleeping and the next day she felt better. The patient stated the joint and bone was intermittent and the next day she couldn't move her bones were hurting so bad she couldn't even put her own pants on, and this made her very depressed. The patient stated she felt much better now but the pain had lasted since 03Mar2021 on and off. The patient stated she heard a lot of other people had the same complaints. No investigations were provided by the patient. The outcome of the events were unknown.  No follow-up attempts are possible, information about lot/batch number cannot be obtained.