Headache; her whole left arm and left hand are sore; allergic reaction; left arm started feeling flushed; her left arm started getting hot, and the hot sensation traveled down her left arm to her left hand, and up to her left shoulder and neck/her left arm was much warmer than her right arm; upper part of her left arm started turning pink, and then red; burning feeling in her left hand fingers; her left hand got numb and tingly; her left hand got numb and tingly; her fingers in her left hand became itchy/it was a deep down itch in her left hand fingers; the muscles in her left arm between the inside of her left elbow down to the inside of her left wrist were "twingey"; blood glucose was at 295 when she checked before bedtime of 17Feb2021, and at 185 before breakfast in the morning of 18Feb2021; she looked like she had hives; rash going down her left arm/clarified the blotchy red marks go in a line from the inside of her top left elbow down to her left wrist; there is a flush color around the vaccine injection site, but not on the vaccine injection site; Injection site pain/injection site is sore; left shoulder is warm to the touch around her COVID-19 Vaccine injection site; she looked completely wiped out, and pale; looked completely wiped out/Tiredness; Short of breath; her pulse was 101; This is a spontaneous report received from a contactable consumer (patient). A 51-year-old female patient received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number: EN6200, expiry date: 21Feb2021), via an unspecified route of administration in the left arm, on 17Feb2021 15:40, as single dose, for COVID-19 immunisation. Medical history included type 2 diabetes mellitus from 2012 to (diagnosed with Type 2 Diabetes Mellitus almost 9 years ago), neuropathy in her feet/nerves and reported that she only turns pink if she gets overheated. There were no concomitant medications. The patient did not receive any prior vaccinations within 4 weeks. Historical vaccines included influenza vaccine (reported as flu vaccine) which she gets every year and pneumococcal vaccine (reported as pneumonia vaccine) which she gets every 5 years. The patient reported that she received her first Pfizer COVID-19 vaccine on 17Feb2021 and had an allergic reaction. She said she was at a podiatry appointment, and her podiatrist told her the pharmacy had an extra COVID-19 Vaccine available. She said the pharmacy staff came to her podiatrist's office to administer her COVID-19 Vaccine. She said about 5 minutes after she received the COVID-19 Vaccine injection, on 17Feb2021 15:45, her left arm started feeling flushed, her left arm started getting hot, and the hot sensation traveled down her left arm to her left hand, and up to her left shoulder and neck. She said 20 minutes later, she walked from her podiatrist's office to a nurse's station to be monitored further. She said while she was at the nurse's station, a doctor came by twice to evaluate. She clarified the upper part of her left arm started turning pink, and then red. She said her podiatrist asked her if that was a normal reaction for her. She said she told her podiatrist she only turns pink if she gets overheated. She said her left hand got numb and tingly. She said the muscles in her left arm between the inside of her left elbow down to the inside of her left wrist were "twingey". She said her podiatrist and his nurse felt both her arms, and said her left arm was much warmer than her right arm. While she was at the nurse's station being monitored, she felt short of breath. She said she wasn't sure if she was short of breath because of her nerves. She said her oxygen level was checked and it was at 99%. She said her pulse was 101, her blood pressure was 118/76, and her blood glucose finger stick test was 128. She said she was told by the staff monitoring her, she should expect her blood glucose number to skyrocket because there is a steroid in the COVID-19 Vaccine shot. She said the staff also mentioned she can expect blood glucose spikes as the COVID-19 Vaccine's steroid goes through her system. Her fingers in her left hand became itchy while she was at the nurse's station being monitored. It was a deep down itch in her left hand fingers. She said she asked for an ice pack to put on her left hand because she uses ice packs for neuropathy in her feet, and she felt an ice pack would help with the itch and burning feeling in her left hand fingers. The doctor came to look at her again and wanted to give her IV Benadryl. Then the doctor decided against the IV Benadryl because she would be too sleepy to drive home but the doctor did eventually give her an intramuscular injection of Benadryl 25mg (clarified as Diphenhydramine 25mg in a syringe) in her upper right arm. Within 5 minutes the itching in her left hand fingers calmed down, and the redness in her left arm calmed down to a pink color. She said 20 minutes later her left arm was still pink and warm. She said she was told by the doctor if her reaction moved out of the localized area of her left arm, to go to the Emergency Room, and to use an icepack, again, on her left hand. When she arrived home, her husband said she looked like she had hives and a rash going down her left arm. Her left arm was not itchy though. She clarified the blotchy red marks go in a line from the inside of her top left elbow down to her left wrist. She reported that while she was at her podiatrist's office her left arm was a solid pink. She then mentioned that when she goes out in the sun and gets overheated, she turns pink. She said from her left shoulder to left elbow was warm to the touch. She said by the COVID-19 Vaccine injection site there is a flush color around the vaccine injection site, but not on the vaccine injection site. She said the COVID-19 Vaccine injection site is sore and her left shoulder is warm to the touch around her COVID-19 Vaccine injection site. She reported there were no blotchy, red marks on her left arm on 18Feb2021. She said her left arm is a pretty normal on 18Feb2021. The nurse who monitored her after the COVID-19 Vaccine shot said she needed to report her allergic reaction. She was told she needs to let the COVID-19 Vaccine staff know of her reaction before she gets her second COVID-19 Vaccine injection, so she can be monitored closely. She took no other treatment after she returned home from receiving her COVID-19 Vaccine. She reported she had a headache on 18Feb2021, clarifying her whole head hurts, and the headache has been persisting all day. She said she experienced tiredness, as well. She said the tiredness started on 17Feb2021 and can be partially attributed to the Diphenhydramine 25mg injection she was given. Her husband told her she looked completely wiped out, and pale when she got home after getting her COVID-19 Vaccine on 17Feb2021. She said she remembers being tired when she got home because her eyes were squinty. She reported feeling more tired on 18Feb2021 and her whole left arm and left hand are sore. She clarified her blood glucose was at 295 when she checked before bedtime of 17Feb2021, and at 185 before breakfast in the morning of 18Feb2021. The patient recovered from the events "her fingers in her left hand became itchy/it was a deep down itch in her left hand fingers" on 17Feb2021; from "upper part of her left arm started turning pink, and then red" and "rash going down her left arm/clarified the blotchy red marks go in a line from the inside of her top left elbow down to her left wrist" on 18Feb2021; from "her left hand got numb and tingly", "the muscles in her left arm between the inside of her left elbow down to the inside of her left wrist were twingey", short of breath, "burning feeling in her left hand fingers" and "she looked completely wiped out, and pale" in Feb2021; was recovering from "left arm started feeling flushed"; has not recovered from "her left arm started getting hot, and the hot sensation traveled down her left arm to her left hand, and up to her left shoulder and neck/her left arm was much warmer than her right arm", "blood glucose was at 295 when she checked before bedtime of 17Feb2021, and at 185 before breakfast in the morning of 18Feb2021", "there is a flush color around the vaccine injection site, but not on the vaccine injection site", "Injection site pain/injection site is sore", "left shoulder is warm to the touch around her COVID-19 Vaccine injection site", "looked completely wiped out/Tiredness", "Headache" and "her whole left arm and left hand are sore". The outcome of the events allergic reaction, "her pulse was 101", "she looked like she had hives" was unknown.