side effects such as nausea, dizziness, headaches, tiredness, and arm and leg pain immediately after which lasted until the next day; side effects such as nausea, dizziness, headaches, tiredness, and arm and leg pain immediately after which lasted until the next day; side effects such as nausea, dizziness, headaches, tiredness, and arm and leg pain immediately after which lasted until the next day; side effects such as nausea, dizziness, headaches, tiredness, and arm and leg pain immediately after which lasted until the next day; arm and leg pain immediately after which lasted until the next day; side effects such as nausea, dizziness, headaches, tiredness, and arm and leg pain immediately after which lasted until the next day; Severe back pain,; Experiencing a tingling sensation on his back; This is a spontaneous report from a contactable Healthcare professional (Nurse). A 15-years-old male (reporter's son) patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot number was not reported), dose 1 via an unspecified route of administration on 13May2021 as dose 1, single for covid-19 immunization. Medical history included obesity, anxiety, autism, overweight from an unknown date (Autism and Anxiety would be about 8 years old, as reported). Concomitant medication(s) included (FLUOXETINE) taken for anxiety; bupropion hydrochloride (BUPROPION HCL XL) taken for anxiety; lubiprostone (AMITIZA); calcium carbonate, colecalciferol (VITAMIN D 2000) taken for an unspecified indication, start and stop date were not reported. On an unspecified date, the patient experienced side effects such as nausea, dizziness, headaches, tiredness, and arm and leg pain immediately after which lasted until the next day and 18May2021 experiencing a tingling sensation on his back, on 19May2021 severe back pain, arm and leg pain immediately after which lasted until the next day on an unspecified date. Caller was a nurse who was calling for her 15-year-old son (who will be turning 16 years old next week) who received his Pfizer COVID Vaccine Last week, Thursday on 15May2021. He experienced side effects such as nausea, dizziness, headaches, tiredness, and arm and leg pain immediately after which lasted until the next day. He was fine until yesterday, to which he started experiencing a tingling sensation on his back the evening of 18May2021. On 19May2021 morning, he has had severe back pain, leg and arm pain, nausea, headaches. and dizziness. She was asking if there have been reports of reoccurrence of symptoms after they have gone away. Nurse stated So her son had the vaccine last week Thursday and afterwards he had n' number of symptoms which we were expecting that. They lasted until the next day. He had dizziness, headache, leg and arm pain, nausea, tiredness. Everything was fine yesterday he started was some severe back pain, leg and arm pain, headache, nausea dizziness. What she needs to know was, was the side effect reoccur after 6 days. When reconfirmed the event, Nurse stated that Right It started again yesterday so it happened after the shot, the immunization and it was done for four days then now we are having symptoms that are actually even more severe. Is that normal. Therapeutic measures were taken as a result of events which includes 650 mg for Tylenol and 600 mg for Ibuprofen. The clinical outcome for all events was unknown.  Additional Context: Nurse stated, "So my son had the vaccine last week Thursday and afterwards he had n' number of symptoms which we were expecting that. They lasted until the next day. So He had dizziness, headache, leg and arm pain, nausea, tiredness. Everything was fine yesterday he started was some severe back pain, leg and arm pain, headache, nausea dizziness. What I need to know is, is the side effect reoccur after 6 days." When reconfirmed the event, Nurse stated, "Right It started again yesterday so it happened after the shot, the immunization and it was done for four days then now we are having symptoms that are actually even more severe. Is that normal?"  Information on Lot/Batch number is available. Additional information has been requested.