arm pain; Red spot on her arm; Had a tiny red circle where the vaccine was administered; It was brighter, more red, warm to touch, and itchy; It was brighter, more red, warm to touch, and itchy; neck pain has been worse than normal on the left side; neck pain has been worse than normal on the left side; Arm was starting to hurt again, in the muscle, it felt tight like a pulled muscle; Low-grade temperature; Body chills; Normal Vaccine Left Arm Pain/where the vaccine was administered; This is a spontaneous report from a contactable consumer (patient). A 26-year-old female patient received bnt162b2 (Pfizer-BioNTech Covid-19 Vaccine), dose 2 via an unspecified route of administration on 09Apr2021 12:30 at 26 years old (LOT: EW0153) as single dose on left arm for covid-19 immunisation. Medical history included polycystic ovarian syndrome (PCOS) from 2016 and ongoing, took no medications; neck pain; headache; Low B12 Values, Issues Absorbing Iron; Anemic; Bad Vitamin Absorption, not lot of Vitamin D in Winter; allergies. Concomitant medications included ongoing cyanocobalamin (VITAMIN B12, Lot 2406217, Expiration: Sep2022) Complex taken for Low B12 Values, Issues Absorbing Iron; ongoing ferritin 325mg Ferris Sulfate, taken for Anemic, doesn't absorb Iron; ongoing colecalciferol (D3 VITAMIN) taken for Bad Viamin Absorption, not lot of Vitamin D in Winter; loratadine Apr2021 and ongoing for allergies; ongoing ibuprofen, only takes one at a time for Neck Pain or Headache. No other vaccines were administered on Same Date of the Pfizer Suspect. The patient previously received the first dose of bnt162b2 (LOT:EP7534) on 17Mar2021 13:30 at 26 years old on Right Arm for covid-19 immunisation and experienced more neck pain than normal; Flu Vaccine a couple of years ago where she felt pretty bad, 2018. As a child she had vaccines, but parents were weird and so she did not get as many of them. Caller (patient) was calling in regards to the Pfizer Covid 19 Vaccine. She called to find out if the side effects she was experiencing are normal. She experienced Normal Vaccine Left Arm Pain/where the vaccine was administered on 09Apr2021. The day following the second dose on 10Apr2021, she had a low grade temperature and body chills and it went away. Caller had normal arm pain after the vaccine which mostly went away. On 24Apr2021, her left arm started to hurt again, this was in the muscle and it felt tight like a pulled muscle. After a couple of days this started to go away and she noticed a red spot on her arm, 1 inch lower than where she got the vaccine and she said it was the size of a small medium size potato. Also mentioned she has a tiny red circle where the vaccine was administered. Caller states it is still hurting and has been hurting for the past 2 weeks. Caller states the red circle yesterday was brighter, more red, and warm to touch and itchy. Caller states it is weird to her because it has been a month since the vaccine. Caller clarified, the red circle is not an inch below, it is about 4cm but it is a little bit lower. States there is a very clear difference, distance between the two. Caller states the redness she noticed Friday or Saturday of last week 30Apr2021 or 01May2021, and it looks more faded but it had gotten brighter. States it does not hurt anymore, it just itches under the skin like a bug bite, and it is a little bit warmer than the normal skin. Caller states she was messaging her friend about her arm pain, and said it was like she got another shot and it had started to go away and then it started hurting again on Tuesday 04May2021. States the redness started on Saturday or Sunday. States her mom is a nurse so she sent a picture to her, she thinks it happened before Monday. She is unsure of exact start date. Caller states she had normal vaccine arm pain for only a couple of days because she remembers she went on a long hike and she was not paying attention to it. States she was hanging out with a friend and noticed her arm was hurting on 24Apr2021, and she thought it was odd because the vaccine was 2 weeks before. States she thought it would go away, the pain did but now it is red and itchy. States it doesn't itch really bad, but if it brushes clothing or she moves her finger over it is itchy. Caller states her neck pain has been worse than normal on the left side. States she is not sure if it is related to the muscle in her arm. States it is not super bad, but she notices it. Unknown Start Date. States she knows it has been worse this week. States she works on computer though, so she may be sitting weird. Time of Onset (24-hour clock): Fever and Chills 08:00 10Apr2021. Treatment included: Took Tylenol initially the day she had fever and chills. Caller states she just thought it was probably weird because she still had it 2 weeks after but it was not hindering her life, but she thought since it has been a month now, she should call and tell us. The events didn't result in emergency room or physician office, suggested she should since it has been a while. Relevant Tests were none. The outcome of "a low grade temperature and body chills" was recovered on 10Apr2021; of "Normal Vaccine Left Arm Pain/where the vaccine was administered", "Arm pain" and "Arm was starting to hurt again, in the muscle, it felt tight like a pulled muscle" was recovered on an unspecified date; of "neck pain has been worse than normal on the left side" and "red spot on her arm", "tiny red circle where vaccine was administered", "red circle yesterday was brighter, more red, warm, itchy" was not recovered. The reporter considered the case as non-serious.  Follow up attempts are completed. No further information is expected.