Tired; Sweat; Became really cold with chills, freezing, couldn't get warm; Became really cold with chills, freezing, couldn't get warm; Started to feel strange; Sick; Felt very drained; Pretty big knot on her right arm almost the size of half of a golf ball; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 63 year-old female patient received bnt162b2 (BNT162B2), administered in arm right, administration date 30Mar2021 18:30 (Lot number: EN6208) at the age of 63 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Diabetes", start date: 03Mar2021 (ongoing), notes: Verbatim: Diabetes; "Fatty tumor on left arm" (ongoing), notes: Verbatim: Fatty tumor on left arm; "ulcerative Colitis", start date: Nov2019 (ongoing), notes: Verbatim: Ulcerative colitis; "Asthma" (unspecified if ongoing), notes: Verbatim: Asthma, She has 2 inhalers that she only uses as needed that she hasn't used at all; "pneumonia" (unspecified if ongoing), notes: 5 years ago and ended up with asthma. Concomitant medication(s) included: METFORMIN taken for diabetes mellitus, start date: 04Mar2021 (ongoing); LISINOPRIL taken for blood pressure measurement, start date: 04Mar2021 (ongoing). Vaccination history included: Bnt162b2 (Dose 1, Lot Number: EN6198, injection to right arm around 19:00 pm, on 09Mar2021 and she was perfectly fine.), administration date: 09Mar2021, for COVID-19 immunization; Flu shot, for Immunization; Pneumonia shot, for Immunization; Shingles shot, for Immunization. The following information was reported: ILLNESS (non-serious) with onset 31Mar2021, outcome "recovered" (07Apr2021), described as "Sick"; FATIGUE (non-serious), outcome "not recovered", described as "Tired"; FATIGUE (non-serious) with onset 31Mar2021, outcome "recovered" (06Apr2021), described as "Felt very drained"; FEELING ABNORMAL (non-serious) with onset 31Mar2021 12:00, outcome "recovered" (07Apr2021), described as "Started to feel strange"; FEELING COLD (non-serious), CHILLS (non-serious) all with onset 31Mar2021 15:00, outcome "recovered" (01Apr2021) and all described as "Became really cold with chills, freezing, couldn't get warm"; HYPERHIDROSIS (non-serious) with onset 01Apr2021, outcome "recovered" (02Apr2021), described as "Sweat"; VACCINATION SITE MASS (non-serious) with onset 31Mar2021, outcome "recovered", described as "Pretty big knot on her right arm almost the size of half of a golf ball". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: The patient was perfectly fine on 30Mar2021. When she woke up on 31Mar2021 she was still perfectly fine. By around 12:00 noon on 31Mar2021 she started to feel strange. By around 15:00 on 31Mar2021 she became really cold with chills, freezing, couldn't get warm for next 24 hours. After that she sweat for 24 hours. She never had a fever. She noticed on 31Mar2021, at unknown time, probably that night, that she had a pretty big knot on her right arm almost the size of half of a golf ball which she did not get with the first dose of Pfizer-BioNTech COVID-19 Vaccine. She felt very drained up until yesterday, 06Apr2021. Today she feels like a different person, as she feels like she has recovered completely from all events other than feeling a little tired which she would think that she would be tired after being sick-lasting effect. She is getting up and getting out now, as a matter of fact she is about to take her 90 year old mother for a walk to keep her moving.  No follow-up attempts are possible. No further information is expected.