Lost a whole bunch of weight. Weight went down to 120 pounds; My quality of my life has been reduced significantly/effecting his quality of life; vitamin deficiency; anemia; digestive system is messed up; twitches in his back; felt like hell, my insides didn't feel right/Feels like the insides of his body are crawling around; sweating; hot chills/cold chills; body tremors; vomiting, the act of putting food in my mouth almost made me throw up; constipation; diarrhea; massive fungal infections; couldn't eat; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team, Program ID. The reporter is the patient.  A 73-year-old male patient received BNT162b2 (BNT162B2), on 14Jun2021 as dose 2, single (Batch/Lot number: unknown) at the age of 72 years, in left arm for covid-19 immunisation. The patient's relevant medical history was not reported. Concomitant medication(s) included: LISINOPRIL; LEVOTHYROXINE; KLONOPIN; QUETIAPINE. Vaccination history included: BNT162b2 (dose 1), administration date: 22May2021, when the patient was 72-year-old, for COVID-19 Immunization. The following information was reported: TREMOR (non-serious) with onset 15Jun2021, outcome "recovering", described as "body tremors"; CONSTIPATION (non-serious) with onset 15Jun2021, outcome "unknown"; EATING DISORDER (non-serious) with onset 15Jun2021, outcome "unknown", described as "couldn't eat"; DIARRHOEA (non-serious) with onset 15Jun2021, outcome "recovering", described as "diarrhea"; FEELING ABNORMAL (non-serious) with onset 15Jun2021, outcome "recovering", described as "felt like hell, my insides didn't feel right/Feels like the insides of his body are crawling around"; FEELING OF BODY TEMPERATURE CHANGE (non-serious) with onset 15Jun2021, outcome "recovering", described as "hot chills/cold chills"; FUNGAL INFECTION (non-serious) with onset 15Jun2021, outcome "recovered", described as "massive fungal infections"; HYPERHIDROSIS (non-serious) with onset 15Jun2021, outcome "recovering", described as "sweating"; VOMITING (non-serious) with onset 15Jun2021, outcome "recovering", described as "vomiting, the act of putting food in my mouth almost made me throw up"; WEIGHT DECREASED (non-serious), outcome "unknown", described as "Lost a whole bunch of weight. Weight went down to 120 pounds"; QUALITY OF LIFE DECREASED (non-serious), outcome "unknown", described as "My quality of my life has been reduced significantly/effecting his quality of life"; HYPOVITAMINOSIS (non-serious), outcome "unknown", described as "vitamin deficiency"; ANAEMIA (non-serious), outcome "unknown", described as "anemia"; GASTROINTESTINAL DISORDER (non-serious), outcome "unknown", described as "digestive system is messed up"; MUSCLE TWITCHING (non-serious), outcome "unknown", described as "twitches in his back". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of hypovitaminosis, anaemia.  Additional information: It was reported that patient took the vaccine a year and half ago but the side effects is still on. He wanted to know what should he do. The next day, patient just felt like hell. Had hot chills, cold chills, sweating, body tremors, vomiting, constipation, diarrhea, massive fungal infections and his insides didn't feel right. He couldn't eat, the act of putting food in mouth almost made his throw up. He lost a lot of weight. Had been to the doctor 5 times to have this worked out but it's nowhere near normal.  His quality of my life has been reduced significantly. He want to know what you can do for me. All the side effects started after the second vaccine. The very next day, he woke up and felt like hell. The side effects were very severe for approximately a year. Ruined his entire summer. Then, the doctor finally put him on medicine for a vitamin deficiency and anemia. Taking vitamins and iron. Symptoms have improved quite a bit, but he was still nowhere near normal. Lost a whole bunch of weight. Weight went down to 120 pounds. Still experiencing all of these side effects. Got rid of the infection once, but it came back. Got rid of it again, and it hasn't come back yet. His digestive system was messed up. Has to balance his food just right or things don't move in his digestion. He eats healthy and it active, but its not enough. Feels like the insides of his body are crawling around. Has tremors and twitches in his back. None of these things were happening prior to the vaccine. Reach out to his provider. Saw the doctor multiple times. Even thought he was going to have to go on disability. The patient did not had any prior vaccination.  The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.