lymphadenopathy; sore lymph nodes /Sore lymph glands under both arms; soreness under the right arm persists; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 63 year-old female patient received bnt162b2 (COMIRNATY), administered in arm left, administration date 27Mar2021 14:00 (Lot number: EN6206) at the age of 63 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Diagonsed Allergies" (unspecified if ongoing); "Compromised immune status" (unspecified if ongoing); "Respiratory illness" (unspecified if ongoing); "genetic/chromosomal abnormalities" (unspecified if ongoing); "endocrine abnormalities(including diabetes)" (unspecified if ongoing); "obesity" (unspecified if ongoing); "immunodeficiencies with MS", start date: 2007 (unspecified if ongoing), notes: Immunodeficiencies with MS, Thyroid Cancer diagnosed at age 20, but was diagnosed 2007; "thyroid cancer" (unspecified if ongoing), notes: Immunodeficiencies with MS, Thyroid Cancer diagnosed at age 20. There were no concomitant medications. Vaccination history included: Bnt162b2 (Dose 1, Lot Number / Expiry Date: unknown, Route, Anatomical Location: Injected in the right arm in the muscle.), administration date: 06Mar2021, when the patient was 63 years old, for Covid-19 immunization. The following information was reported: LYMPH NODE PAIN (non-serious) with onset 28Mar2021, outcome "recovering", described as "sore lymph nodes /Sore lymph glands under both arms"; PAIN IN EXTREMITY (non-serious) with onset 28Mar2021, outcome "recovering", described as "soreness under the right arm persists"; LYMPHADENOPATHY (non-serious), outcome "unknown", described as "lymphadenopathy". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: Patient states she received her second dose of the Pfizer BioNTech Covid-19 Vaccine on 27Mar2021, 12 hours later, and lasting for a week and a half patient states she has experienced sore lymph nodes under both arms after receiving this dose, and the soreness under the right arm persists. No other products. No investigation Assessment. They were tender. She soreness persisted under right arm, but it is improved. She thought she had leukemia. When reading vaccine card, she stated she had to put glasses on. She confirmed that she needed to have glasses before the vaccine. She does not have the first card and then corrected to second card. She is confused because it says date given 06Mar2021 and return date is 27Mar2021. The second one was given in the right arm in the muscle. She does not have the lot or expiration for that one. She does not know if it is phantom pain. She can feel tenderness under right arm pit. The booster is not something she wants whole heartedly. The reason she got the vaccines was because it was the right thing to do. She has MS and is elderly and wanted to live and wanted everyone to get it. She confirmed she had MS prior to getting it. She probably had it all her life but was diagnosed 2007. She first said about 7 years, and then said, she is not thinking, and her math is not right. She has had it a long time. She then said her Calcium score is zero and that is good. She is healthy and blessed. No Additional Vaccines Administered on Same Date of the Pfizer Suspect. No Prior Vaccinations (within 4 weeks) vaccinations within four weeks prior to the first administration date of the suspect vaccine. She just said she is old and fragile. No AE(s) following prior vaccinations. Is there a Titer to see if she has antibodies. Before she gets booster, she would like to find out. She would also to find out if there are any dosing differences between someone who is 101 lbs and someone who is 300 lbs.   Follow-up attempts are completed. No further information is expected.