aching arm; rash on my bicep/plus feeling flush with rashes appearing on both arms, my chest and my face.; Arm is sore at injection site.; heart began racing; light headed/I am dizzy; I was not comfortable to drive; my injection arm began to ache from my bicep to my finger tips with sharp pains in the wrist.; rash on my bicep/plus feeling flush with rashes appearing on both arms, my chest and my face.; This is a spontaneous report from a contactable consumer (patient) reporting for herself. A 40-year-old non-pregnant female patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Formulation: Solution for injection, Lot number: EN6204), via an unspecified route of administration, administered in Left arm on 10Mar2021 17:30 at the age of 40-years-old as single dose for COVID-19 immunisation. Medical history included Insulin resistance, obese class II (BMI 35.3 kg/m2)) from an unspecified date. Concomitant medications included phentermine hydrochloride, topiramate (QSYMIA) taken for an unspecified indication, citalopram hydrobromide (CELEXA) taken for an unspecified indication, buprenorphine hydrochloride, naloxone hydrochloride (SUBOXONE) taken for an unspecified indication, metformin taken for an unspecified indication, omeprazole taken for an unspecified indication from an unspecified date received in two weeks of vaccination. The patient previously took Sulfa and experienced allergy. The patient did not receive other vaccine in four weeks of vaccination. The patient was not diagnosed with COVID-19 prior vaccination. The patient has not been tested for COVID-19 post vaccination. Facility type vaccine was Unknown. On 10Mar2021 at 17:30, Immediately after receiving injection, the patient experienced heart began racing and she became light headed. she sat in observation for 15 mins, then was handed her card and told she could leave. she was not comfortable to drive, so she sat in her vehicle for approximately 10 additional minutes. As the night continued, her injection arm began to ache from her bicep to her fingertips, with sharp pains in the wrist. she also developed a rash on her bicep below the injection site. she took an aleve and Immediately went to bed. she does not remember falling asleep. she woke up early the next morning on 11Mar2021, with a full day of appointments, so she took an aleve to help with the aching arm. At first, it was only aching at the infection site, but as the day progressed she began to feel the se pain/aching she felt the day prior, plus feeling flush with rashes appearing on both arms, her chest and my face. It was now almost 24 hours post-injection and she was about to lay down as she was dizzy. Her arm was sore at injection site on 10Mar2021 at 17:30. ae resulted in None of the above. Treatment for ae was No. Therapeutic measures were taken as a result of my injection arm began to ache from my bicep to my fingertips with sharp pains in the wrist. (pain), rash on my bicep/plus feeling flush with rashes appearing on both arms, my chest and my face. (rash), aching arm (pain in extremity). The patient underwent lab tests and procedures which included body mass index: 35.3 kg/m2 on an unspecified date, heart rate: racing on 10Mar2021. The outcome of events was recovering.  No follow-up attempts are possible. No further information is expected.