arm stiff and sore two hours after getting vaccine/muscle is stiff in her right arm; arm stiff and sore two hours after getting vaccine, at right arm; she didn't get to sleep last night since it felt heavy and stiff with discomfort; she didn't get to sleep last night since it felt heavy and stiff with discomfort; Couldn't raise her right arm/couldn't lift her right arm/ farthest she can lift her right arm from her side is 2 inches; she didn't have strength to open the bottle it was new and she cannot open it; This is a spontaneous report from a contactable consumer. A 69-year-old female patient started to receive BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), via an unspecified route of administration on 21Dec2020 15:00 at single dose, at right arm for COVID-19 immunization. Medical history included ongoing hypertension (controlled),  ongoing prediabetes (controlled), blood thinner, stroke (it was a very mild trace of a very mild stroke) and MRI on 2015. Historical vaccine included flu vaccine on an unspecified date. Concomitant medication included clopidogrel bisulfate (PLAVIX) from 2015 as blood thinner. After the patient got the vaccine on 21Dec2020, she was instructed to sit for 15 minutes and was given flyers and the card that stated the next scheduled dose is on 11Jan2020. She mentioned that the card she was given is the COVID-19 appointment card with a return flyer attached regarding Pfizer vaccine recipients and care givers. She reported that all that she can see on there is that, there was no lot, batch or serial number, just the name of the vaccine. She stated that the vaccine was shipped in the morning and they started giving it around noon and she got hers at three o'clock in the afternoon. She stated this is their facility's second batch, and the first was consumed last week. She stated she made a mistake, and that she should have requested they inject her left arm because she is right handed.  The patient reported that she experienced arm stiff and sore two hours after getting vaccine (17:00). It was tolerable at first, but when she got home, she couldn't raise her right arm. She thought it would just be like the Flu vaccine and tolerable but she couldn't lift her right arm. The farthest she can lift her right arm from her side is 2 inches. She tried putting a cold compress on it but it was not working. She doesn't know if she can take TYLENOL. She would like to know if she can take TYLENOL for the pain since it was the only medication she has. Her supervisor advised her to take Advil, but she only has TYLENOL. She says she does feel better and that she was fine, there was nothing else, just her arm is so sore. She has nothing negative, no other side effect, no redness, just her muscle is stiff in her right arm and it feels sore. She stated maybe if she had taken TYLENOL the night before, but last night or today she didn't have strength to open the bottle it was new and she cannot open it. She stated at least the pain is lesser than last night, she didn't get to sleep last night since it felt heavy and stiff with discomfort. She was supposed to get a mammogram on reporting time, but since she couldn't raise her arm she was trying to reschedule. She is supposed to have a blood test the following day. Therapeutic measures were taken which includes cold compress. Outcome of the event "arm stiff and sore two hours after getting vaccine, at right arm" was recovering while outcome of all other events was unknown.  Information on the lot/batch number has been requested.