febrile Neutropenic with neutrophils 0.78; 103 fever; night sweats; body aches; headaches; Extreme heightened sensory (smell, taste, sound, reaction to bright lights& emotions; Extreme heightened sensory (smell, taste, sound, reaction to bright lights& emotions; Extreme heightened sensory (smell, taste, sound, reaction to bright lights& emotions; Extreme heightened sensory (smell, taste, sound, reaction to bright lights& emotions; Large lymph node under left arm followed by painful swollen left testicle (baseball size); Large lymph node under left arm followed by painful swollen left testicle (baseball size); DOSE 3(BOOSTER); red blood cell & Platelets rising; red blood cell & Platelets rising; nausea; This is a spontaneous report from a contactable consumer(patient).  The 63-years-old male patient received bnt162b2 (Pfizer COVID 19), dose 3 via an unspecified route of administration, administered in Arm Left on 30Sep2021 13:00 at his 63-years-old (Lot Number: FC3184) as dose 3(booster), single for covid-19 immunisation.  Medical history included Bicuspid Aorta ascending aortic aneurysm , CLL(chronic lymphocytic leukaemia) 2013 23% residual, Low platelets (75-90) , Allergy. Concomitant medication included tadalafil (TADALAFIL). No other vaccine in four weeks, no Known allergies . Historical Vaccine included first dose BNT162B2(DOSE 1, SINGLE, Lot No: EN6205) on 06Mar2021 01:00 PM and second dose BNT162B2(DOSE 2, SINGLE, Lot No: ER8727) on 30Mar2021 01:00 PM, both at his 63-years-old, Location of injection was arm Left for covid-19 immunisation, and also 2 weeks after 2nd vaccine antibodies at 62 & 2 weeks before 3rd vaccine were at 43. It was reported that 24 hours after shot on 01Oct2021 01:00PM, 103 fever, night sweats, body aches & headaches. Extreme heightened sensory (smell, taste, sound, reaction to bright lights & emotions), Large lymph node under left arm followed by painful swollen left testicle (baseball size) continued for several weeks along with low grade fevers. On 21Oct2021, he started feeling better but on 25Oct2021 had a short nausea event followed by return of fevers (102 PM/ 101 AM). He had CBC blood tests at local ER with blood/urine cultures. That ER Dr missed him being febrile Neutropenic with neutrophils 0.78 on unknown date. His Oncologist (CLL in 2013 treated only with Rituxin in 2013 by 4 infusions & 23% residual disease as of 2018, with platelets ~85) Also 2 weeks after 2nd vaccine antibodies at 62 & 2 weeks before 3rd vaccine were at 43. He was admitted 27Oct2021 to Hospital 7 days & given IV antibiotics & daily Leukine injections to stimulate Neutrophils production. Still week with night sweats but neutrophils at 2.4 & platelets/red blood cell & Platelets rising. Events(103 fever, night sweats, body aches & headaches. Extreme heightened sensory (smell, taste, sound, reaction to bright lights & emotions), Large lymph node under left arm followed by painful swollen left testicle (baseball size), febrile Neutropenic with neutrophils 0.78) resulted in: Doctor or other healthcare professional office/clinic visit, Emergency room/department or urgent care, Hospitalization, Life threatening illness (immediate risk of death from the event). Hospitalization duration was 7days. Patient was recovered with lasting effects, treatment for these events included 3 different IV antibiotics, IV fluids, Leukine. No covid prior vaccination, and there was covid tested post vaccination. Post vaccination on 27Oct2021, Covid test (Blood test) and COVID-19 virus test(Nasal Swab) both were negative. Outcome of nausea, red blood cell & platelets rising was unknown, of other events was recovered with sequelae.  Follow-up attempts are completed. No further information is expected.