This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient. A 78 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 04Oct2021 11:40 (Batch/Lot number: unknown) at the age of 78 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Type 2 Diabetes" (unspecified if ongoing), notes: Verbatim: Type 2 Diabetes; "cancer" (unspecified if ongoing); "mastectomy" (unspecified if ongoing); "seizures" (unspecified if ongoing); "tremors" (unspecified if ongoing). The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (Lot number: EL3247 , DOSE 1, SINGLE, 4:10), administration date: 20Feb2021, when the patient was 78 years old, for COVID-19 immunization; Bnt162b2 (Lot number:EL6207, DOSE 2, SINGLE, 4:30), administration date: 13Mar2021, when the patient was 78 years old, for COVID-19 immunization. The following information was reported: VACCINATION SITE WARMTH (non-serious), outcome "unknown", described as "I got little rash and it got little hot; arm got hot, the area around that got red and it swelled"; VACCINATION SITE ERYTHEMA (non-serious), VACCINATION SITE SWELLING (non-serious), outcome "unknown" and all described as "the area around that got red and it swelled"; PAIN IN EXTREMITY (non-serious), outcome "unknown", described as "My arm hurt"; RASH (non-serious), outcome "unknown", described as "part of my arm, it has kind of little red rash". Additional information: Consumer stated, she got my shot, my booster on Monday, the other two were fine but last night which was my second 'day' (Not clarified) still hurts today, her arm hurt, it swelled, she got little rash and it got little hot. When probed if consumer took Pfizer COVID-19 Vaccine, consumer stated, The Booster oh yeah I wouldn't have anything else but the Pfizer. When paraphrased the above concern, consumer stated, It swelled and it is going down now and my arm got hot, the area around that got red and it swelled, 'some' part of her arm, it has kind of little red rash. Now that's going away but she thought she should tell you, I don't know if you wanted to know but she just want you to know. I am not a suing person, I like Pfizer products and I wouldn't take anything else. Consumer stated, she think she put it in another place. Consumer stated, she don't see, it doesn't say, it says quality 0.3 okay (Consumer was unable to find the details). Medical conditions and concomitant products : Consumer stated, Yes, I do I have cancer, my right lung has cancer but it's a slow kind (incomprehensible voice) I had a mastectomy on my right side and lymph node taken out of my right side in my armpits (Not appropriately clarified over the call) and that's true and I am being honest with you okay you ready I have essential tremors it's kind of little seizures and I have two already, essential tremors, it's in the  brain, I have a neurologist for that. (Not appropriately clarified, hence not captured in tab). Consumer stated, I think how recent will they have to be because last month oh no (Further clarification was unknown). Consumer stated, she not that kind of person, she don't sue in people, she don't believe in that. she just if you needed to know I will tell you, I'm not that kind of person. It's going to get better, honestly it may be given knowing my underlying condition you know, she don't know, she just dealing with what the paper told me (Further clarification was unknown).  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.