arm is still sore and she has a little lump; arm is still sore and she has a little lump; This is a spontaneous report from a contactable consumer. This 74-year-old female consumer reported for herself that received unknown dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Batch/Lot number was not reported, NDC number and Expiry Date: Not Provided), via an unspecified route administration administered in right arm on 22Mar2021 11:30 (at the age of 74-years-old) as DOSE NUMBER UNKNOWN, SINGLE for COVID-19 immunization. The patient medical history included ongoing high blood pressure, ongoing heart rate increased, ongoing arthritis and ongoing thyroid disorder. Concomitant medication(s) included acetylsalicylic acid (BABY ASPIRIN) and products thyroid medication taken for an unspecified indication from an unspecified start date and ongoing.  History of all previous immunization with the Pfizer vaccine considered as suspect (or patient age at first and subsequent immunizations if dates of birth or immunizations was not available. Not had any additional administered vaccines on same date with the Pfizer vaccine considered as suspect. The patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. On an unspecified date, the patient experienced arm was still sore and she has a little lump. It was reported that when speaking of her mother's experience with the Covid 19 vaccine she reports her own arm was sore. Her arm was still sore and she has a little lump. Patient reported that they were told they were getting the MODERNA vaccination but she was given the paperwork for the Pfizer Covid 19 vaccine. Caller was asked to locate the Covid 19 vaccine card for manufacturer information but the patient niece has the Covid 19 vaccine card because her niece was going to try and schedule the patient and her mother's next Covid 19 vaccine appointments because she did not have a computer. She was doing well enough to handle a smart phone. Patient assuming since she had received the Pfizer paperwork that she and her mother had received the Pfizer Covid vaccine. When probing height and weight the caller reports she used to be 5'4" and she's shrinking and her weight fluctuates. The caller remembers her mother saying there was a lump in her arm and the caller felt her own arm and felt a little lump in her arm too. The patient received her vaccine on 22Mar2021 and she didn't pay much attention to her arm until her mother mentioned her (the mothers) arm and then the patient noticed her arm (the caller's arm). The patient arm was not red and it's not sore anymore but her mother was sore. The patient had a little knot there on her arm and she isn't having any problems with it. For the first couple of days it was a little sore but it's no problem as far as she's concerned. When probing concomitant medications, the caller reports they aren't relevant. She takes a baby aspirin and she has high blood pressure, a rapid heartbeat, arthritis and thyroid. The patient did not get the flu shot because it makes her feel bad. Like the whole winter after she gets the flu shot she has a cold and it's continual. NDC/Lot/Expiry for flu vaccine not known. The patient reported she had a pneumonia shot once that she had a reaction too. Her arm swelled up a lot and it was really red and sore. That was when she was about 55 years old, almost 20 years ago. She wished she had the information on that pneumonia vaccine because that's one vaccine she'd like to get. NDC/Lot/Expiry not known. AE(s) following prior vaccinations flu vaccine, pneumonia vaccine, NDC/Lot/Expiry not known on either vaccine Patient reported that she and her mother had their Covid 19 vaccines on the same day at the same time at the same facility. The patient did not require to visit to Emergency Room/Physician Office. No relevant tests conducted. No Investigation Assessment. The outcome of events was reported as unknown.  No follow-up attempts are possible; information about lot/batch number cannot be obtained.