his breathing started to go and he started shutting down/ he couldn't breath; his whole body went dead; Guillain Barre Syndrome; his feet started tingling; paralyzed; feet and hands started getting hot/ he was constantly hot; patient's feet started hurting really bad/had pain in his legs; patient couldn't walk; since he took it is constantly getting colds; he got sick with a bad cold; cough; fever; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the parent.  A 23 year-old male patient received bnt162b2 (BNT162B2), administered in arm, administration date May2021 (Batch/Lot number: unknown) at the age of 22 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "Scoliosis" (unspecified if ongoing), notes: Father relays it is a small slight scoliosis that doesn't affect him. States he was diagnosed around 15 years old. The patient's concomitant medications were not reported. The patient had no additional vaccines administered on same date of the Pfizer Suspect. He had no prior vaccinations (within 4 weeks). Past drug history included: Robitussin for cold; Mucinex for cold; Dayquil; Nyquil for cold. It was reported that the patient would take cold medicine from time to time like Robitussin or Mucinex, Dayquil or Nyquil but was not sure if he took any of these at that time. Vaccination history included: Flu shot (patient has taken the flu shot 2-3 times before and has had a bad reaction to it.), for immunisation, reaction(s): "sick". This was 3-4 years prior to this shot that he stopped taking the flu shot. The following information was reported: LOSS OF CONSCIOUSNESS (hospitalization, medically significant) with onset 29Oct2021, outcome "unknown", described as "his whole body went dead"; GUILLAIN-BARRE SYNDROME (hospitalization, medically significant) with onset 29Oct2021, outcome "unknown", described as "Guillain Barre Syndrome"; PARAESTHESIA (hospitalization, medically significant) with onset 28Oct2021, outcome "not recovered", described as "his feet started tingling"; DYSPNOEA (hospitalization, medically significant) with onset 29Oct2021, outcome "not recovered", described as "his breathing started to go and he started shutting down/ he couldn't breath"; PARALYSIS (medically significant) with onset 2021, outcome "not recovered", described as "paralyzed"; FEELING HOT (non-serious) with onset 2021, outcome "not recovered", described as "feet and hands started getting hot/ he was constantly hot"; PAIN IN EXTREMITY (non-serious) with onset 2021, outcome "not recovered", described as "patient's feet started hurting really bad/had pain in his legs"; GAIT DISTURBANCE (non-serious) with onset 2021, outcome "not recovered", described as "patient couldn't walk"; NASOPHARYNGITIS (non-serious) with onset 2021, outcome "not recovered", described as "since he took it is constantly getting colds"; ILLNESS (non-serious) with onset 2021, outcome "not recovered", described as "he got sick with a bad cold"; COUGH (non-serious) with onset 2021, outcome "unknown", described as "cough"; PYREXIA (non-serious) with onset 2021, outcome "unknown", described as "fever". The patient was hospitalized for loss of consciousness, guillain-barre syndrome (start date: 29Oct2021). The events "his whole body went dead", "guillain barre syndrome", "his feet started tingling", "his breathing started to go and he started shutting down/ he couldn't breath", "paralyzed", "feet and hands started getting hot/ he was constantly hot", "patient's feet started hurting really bad/had pain in his legs" and "patient couldn't walk" were evaluated at the emergency room visit. The patient underwent the following laboratory tests and procedures: blood test: (2021) didn't find anything.; computerised tomogram: (2021) didn't find anything.; urine analysis: (2021) didn't find anything.. Therapeutic measures were taken as a result of guillain-barre syndrome, paraesthesia, dyspnoea, paralysis, feeling hot, pain in extremity, gait disturbance, nasopharyngitis, illness, cough.  The patient received his first Pfizer Covid 19 Vaccine in mid May 2021 and since he took it was constantly getting colds and had pain in his legs and they didn't take it for anything or as a side effect. Father relays that after his cousin got married he got sick with a bad cold and he was constantly hot and they would run the AC cold. Father relays that maybe less than a week after the vaccine he got a fever and the coughing started and he was constantly hot. Father stated he noticed him but every time he would get a cough or cold he would tell him to go to the doctor for cold medicine and he would use it and calm down and then he was back to square one. After the patient got the covid vaccine, his feet and hands started getting hot all the time. Then the patient's feet started hurting really bad so he went to the hospital and they gave him a morphine shot for the pain and sent him home. On 28Oct2021 his feet started tingling and he was taken to hospital and they gave him some Morphine and ran several tests and never found anything and sent him home on 29Oct2021. He was only in the ER, not admitted as they didn't find anything. On 29Oct2021 about 4pm his whole body went dead, his feet were tingling and his breathing started to go and he started shutting down and they called an ambulance. The patient couldn't walk, he became paralyzed. Since then, on 29Oct2021, he was diagnosed with Guillain Barre Syndrome and was paralyzed from his mouth on down. The patient's body was shutting down with this disease. The patient had been hospitalized since 29Oct2021 in hospital. He was currently still in the hospital on a ventilator with a peg tube in his stomach that he gets fed through. He was put on the ventilator on 29Oct2021 as he couldn't breath and they stopped putting it through his mouth and 2 weeks later he got a trach. Stated the doctors can't do anything and his son has had plasmapheresis 7 times. They did IGI or something geno immune treatment and they did one after the treatment and again later on like a couple of weeks ago, 3 weeks ago they did another one. Stated his son wasn't sick or anything, it was just sudden. The hospital had informed the father that his diagnosis was not related to the Pfizer Covid 19 Vaccine. States they did urine, blood, a CAT scan and a couple different things and didn't find anything. Father voiced that all of his household had been diagnosed with Covid.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.