states she probably has neuropathy in her feet especially the left foot; pain on the upper right thigh and went down to her knee; pain on the upper right thigh and went down to her knee; Her whole upper right leg and thigh was inflamed; she can't hardly walk; vascular pain; sick; This is a spontaneous report received from contactable reporter (Consumer) from medical information team. The reporter is the patient. This 89 year-old female patient received bnt162b2 (BNT162B2), intramuscular, administered in arm right, administration date 24Feb2021 (Batch/Lot number: unknown) at the age of 89 years as dose 2, single for covid-19 immunization. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (DOSE 1, Lot: unknown, expiration: unknown), administration date: 03Feb2021, when the patient was 89 years old, for Covid-19 immunization, reaction(s): "just a little pain". The following information was reported: NEUROPATHY PERIPHERAL (medically significant), outcome "unknown", described as "states she probably has neuropathy in her feet especially the left foot"; PAIN IN EXTREMITY (medically significant), outcome "recovered", ARTHRALGIA (non-serious), outcome "unknown" and all described as "pain on the upper right thigh and went down to her knee"; INFLAMMATION (non-serious), outcome "recovered", described as "Her whole upper right leg and thigh was inflamed"; GAIT DISTURBANCE (non-serious), outcome "unknown", described as "she can't hardly walk"; VASCULAR PAIN (non-serious), outcome "unknown", described as "vascular pain"; ILLNESS (non-serious), outcome "unknown", described as "sick". The events "pain on the upper right thigh and went down to her knee", "pain on the upper right thigh and went down to her knee", "her whole upper right leg and thigh was inflamed", "she can't hardly walk", "vascular pain" and "sick" were evaluated at the emergency room visit. Therapeutic measures were taken as a result of neuropathy peripheral. The clinical course was reported as follow: The patient reported that 3 days after her 2nd dose, she experienced pain on the upper right thigh and went down to her knee and lasted for a month. Her whole upper right leg and thigh was inflamed and it settled/ it went down on, to her knee and lasted for a month, she mentioned that it was a terrible experience with second dose since her leg was inflamed, that she needed to use a walker because she could hardly walk. Her knee was totally inflamed terrible and she was in so much pain. The patient stated she probably has neuropathy in her feet especially the left foot. The patient stated that she experienced this adverse reactions that lasted through March and April. She thinks it may be a circular of vascular pain. She stated that it took 2 months before she got back to normal again. Treatment included pain Medication because she lives alone and she couldn't walk. She still feels discomfort in her knee on occasion.  She had been to the emergency room (ER) and urgent care, she talked to the doctors but they don't have the answers to her condition and nobody can tell her what to do. She has seen doctors since and nobody could help or give her the answer. She informed that they did a lot of tests. She stated the doctors do not know anything and they are learning on the job. She stated her primary care and neurologist didn't know what is was and shook their heads.  She added that she still feels discomforts on occasions. The patient wanted to know if she could still get the booster shot, or is it possible to get a lower dose of the booster. She stated the first shot didn't cause this type of pain, just a little pain but it went away after 2-3 day.  The lot number for bnt162b2 was not provided and will be requested during follow up.