it is stiff; entire arm went numb, her hand fell asleep/numbness/it moved up her arm to her shoulder and into her neck, all on her left side/her neck and shoulder are not feeling as it should; left arm is weak; hives/spread to extremities (arms and legs)/specifically her chest, then expanded mostly to her left hip, her right thigh, more on her left side of her body/on her chest it is on the right side too; This is a spontaneous report reported from a contactable female consumer (patient). A 33-years-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Batch/Lot number: EN5318, NDC and Expiration date: unknown), via an unspecified route of administration in arm left on 03Apr2021 (at the age of 33-years-old) as a dose 1, single for COVID-19 immunization. The patient's medical history was reported as no. The patient's concomitant medications were not reported, the caller stated that, they have not had any other recent vaccinations or started any new medications. Enquired, the reporter wanted to report side effects with vaccine, received first dose of Pfizer covid vaccine on 03Apr2021 and developed hives (started day after dose) and has since spread to extremities (arms and legs). It was queried that, was this reported during clinical trials. It was reported that, the consumer called about the Pfizer COVID-19 vaccine who said she wanted to report two AEs she was experiencing. The caller stated that, her first dose was injected around 15:30-15:45. Stated that, her first adverse event started about 5 minutes after her first dose. On 03Apr2021, her entire arm went numb, her hand fell asleep. Stated that, she was still in the pharmacy for observation. Stated that, the numbness was still there, it did subside some and the pharmacist stated that, she thinks she was fine to go if she wanted to. The caller stated that, 20 minutes afterwards, it moved up her arm to her shoulder and into her neck, all on her left side. She stated that, it has gotten better, but her left arm was weak and her neck and shoulder are not feeling as it should. She stated that, it might have been that she might have hit something while she was doing needle, but it was stiff and still not 100% yet. Stated that, her second adverse event was now she has hives, which started approximately 24 hours after her initial dose on her core, specifically her chest, then expanded mostly to her left hip, her right thigh, legs and arms more on her left side of her body. She stated that, on her chest it was on the right side too. She stated that, her hives are very far apart, there are no clusters, she has done no treatment yet, the hives got bad this morning. Stated that, she was seeking recommendations for treatment so she called Medical Information first to find out whether these were common AEs documented from clinical studies, which they were not. She stated that, after this, she was calling her PCP for advice about treatment. The reporter seriousness for the events was reported as unspecified. The investigation assessment was reported as no. The outcome of the events was unknown.  No follow-up attempts are needed. No further information is expected.