sore right arm by the injection site/sore arm; He woke up on Sunday morning with an expected sore right arm by the injection site.; pain under his right armpit/dull pain under his right arm, in the armpit area, that progressively got worse as the day went on; pain under his right armpit/It became swollen; He went to sleep but woke up at 4am this morning; it was inflamed.; This is a spontaneous report from a contactable consumer (patient). A 61-years-old male patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: solution for injec-tion, Batch/Lot Number: ER8727; Expiration Date: was not reported), via an unspecified route of administration, administered in Arm Right on 20Mar2021 15:15 (age at vaccination 61-years-old)) as dose 1, single for COVID-19 immunization. Medical history included di-verticulum from an unknown date and unknown if ongoing , hypertension (high blood pressure ) from an unknown date and unknown if ongoing , food allergy (seafood)from an un-known date and unknown if ongoing. The patient's concomitant medications included maintenance pills for his high blood pressure. Previously patient received Shingles/SHINGRIX on Dec2021 for an unspecified indication and he takes the Flu shot each year with no adverse events. The patient previously took hydrocodone and experienced hypersensitivity. Patient did not receive any other vaccines within 4 weeks prior to the COVID vaccine. Prior to vaccination, was the patient was not diagnosed with COVID- 19. It was re-ported that he received the 1st dose of the Pfizer Covid19 Vaccine Last Saturday afternoon (20Mar2021 at 15:15). Staff where he received it explained some common symptoms and told him that a sore arm is the biggest complaint that they have. He woke up on 21Mar2021 (Sunday) morning with an expected sore right arm by the injection site. Later that day, he noticed a dull pain under his right armpit which progressively got worse and really getting sore. It became swollen and it would be aggravated once he moved a certain way. He went to sleep but woke up at 4am this morning and he noticed that it was really sore so he took some Tylenol and was able to sleep. Today it was still noticeable and sore but it was not quite as bad as it was yesterday. He mentioned that he was fine until about 24 hours after his shot when it started to really bother him. He was concerned because nobody else he knows who get the vaccine experienced this side effect other than him. They experienced other side effects but nothing like him. He mentioned that he saw on the fact sheet that there was swollen lymph nodes and would like to confirm if this is a common side effect. He will be consulting with his doctor this Wednesday. He slept last night and didn't take any Tylenol, but he took Tylenol this morning for pain in the arm pit and that really seemed to lessen it up. Treatment received: Tylenol helped his pain this morning. Clarified he took Tylenol 500mg Extra Strength and he took 2 tablets one time at 0600. He mentions he doesn't like to take Acetaminophen more than he has to. He should have taken it last night before he went to bed, but whatever. Since the vaccination, patient was not tested for COVID-19. The outcome of the events he went to sleep but woke up at 4am this morning and it was inflamed was unknown and rest all events was recovering.  No follow-up attempts are needed. No further information is expected.