short-lived drop in body temperature; shaking uncontrollably; hands and feet were like ice; my whole body had tensed up; unable to sleep; experienced sharp, sudden pain in my calf muscles; lower back pain; Headache; stiff neck; nausea; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 71 year-old patient received bnt162b2 (BNT162B2), administration date 23Feb2021 (Lot number: EN6201) as dose 2, single for covid-19 immunisation. Relevant medical history included: "chronic kidney disease" (unspecified if ongoing), notes: stage 2 a CKD; "mold allergy" (unspecified if ongoing); "allergic grass" (unspecified if ongoing); "animal allergy" (unspecified if ongoing); "fabrics allergy" (unspecified if ongoing); "Ringing in ears" (unspecified if ongoing). Concomitant medication(s) included: TYLENOL; CALCIUM WITH VITAMIN D 3; ASCORBIC ACID, ELECTROLYTE, MULTIMINERALS, MULTIVITAMINS, ZINC; DOCUSATE; PEDIALYTE FOS. Past drug history included: Sulfa, reaction(s): "tongue enlarged to enormous proportions". Vaccination history included: Bnt162b2 (1st dose, Lot: EL3249), administration date: 02Feb2021, for Covid-19 Immunisation, reaction(s): "sore arm, but not sore enough that patient could not sleep on her left side", "brief headache", "extremely short lived drop in body temperature". The following information was reported: BODY TEMPERATURE DECREASED (non-serious), outcome "unknown", described as "short-lived drop in body temperature"; TREMOR (non-serious), outcome "unknown", described as "shaking uncontrollably"; PALMAR-PLANTAR ERYTHRODYSAESTHESIA SYNDROME (non-serious), outcome "unknown", described as "hands and feet were like ice"; TENSION (non-serious), outcome "unknown", described as "my whole body had tensed up"; INSOMNIA (non-serious), outcome "unknown", described as "unable to sleep"; MYALGIA (non-serious), outcome "unknown", described as "experienced sharp, sudden pain in my calf muscles"; BACK PAIN (non-serious), outcome "unknown", described as "lower back pain"; HEADACHE (non-serious), outcome "unknown", described as "Headache"; MUSCULOSKELETAL STIFFNESS (non-serious), outcome "unknown", described as "stiff neck"; NAUSEA (non-serious), outcome "unknown", described as "nausea". Relevant laboratory tests and procedures are available in the appropriate section.  Additional Information: Patient feel so much safer after having the vaccine. Patient got tested twice for nasal swabs, once before patient visited her son for the first time and once when patient started to experience a ringing in her ears, both tests were negative. Patient has been good about social distancing and using safety protocols, although patient does her own grocery shopping. Patient is taking unspecified multivitamin. Patient doesn't know if she had an allergic to any ingredient in the vaccine but just wanted to report her experience. Patient stated if she needs a booster shot in the future, she is not sure if she will be willing to get it or if she really need to get the booster hopefully it is less of a dose for her and may be just as effective.  No follow-up attempts are possible. No further information is expected.