lower left side back pain; received the first dose of the Pfizer COVID 19 vaccine on 15Jan2021 at 12:53PM in the left arm/ she noticed a sore arm right afterward; rash; This is a spontaneous report from a contactable consumer reporting for herself. A 62-year-old female patient received the first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number: EL8982, expiry date: not reported), via an unspecified route of administration, on 15Jan2021 12:53PM at a single dose on the left arm for COVID-19 immunization. The vaccine was administered at a hospital. It was not administered at a military facility. The patient did not receive other vaccines within 4 weeks prior to receiving the Pfizer vaccine. Medical history included allergies/allergy from childhood 4 years old, back problem from 2001, back surgery in 2015, vaginal dryness, high cholesterol, depression, acid reflux, surgery in 2015, physical therapy, and allergy to mold, dogs, roaches. She has multiple allergies from childhood including allergy to mold, dogs, and roaches. She also mentioned she has had back problems since her first surgery in 2015. All of these predate treatment with Pfizer COVID 19 vaccine and Lipitor. She got to where she couldn't stand up straight, but she went to physical therapy. She had surgery in 2015. She had a problem in 2018 and they gave her shots and that helped. Family history was none. Concomitant medications included estradiol (ESTRING) (for three years) for vaginal dryness, fish oil (taking for three to four years) for high cholesterol, paroxetine hydrochloride (PAXIL) (taking for 20 years) for depression, cyamopsis tetragonoloba gum (BENEFIBER FIBER SUPPLEMENT) (using for a year), vitamin d3 (VITAMIN D3) (using for five years; she used to be on calcium but it can cause heart problems so her doctor told to take Vitamin D), dexlansoprazole (DEXILANT) (taking for five years) for acid reflux, (ALLEGRA) (taking for 5 years ) for allergy, (QNASL) (using for 3 years), allergy shots (used forever) for allergy and stool softener (taking for 5 years) to "keep things moving"; all were from unspecified dates and ongoing. The patient previously took atorvastatin (LIPITOR) for high cholesterol from 2017 to 2017 and experienced back pain from 2017 to 2017 (recovered). She also previously took calcium. The patient experienced "received the first dose of the Pfizer COVID 19 vaccine on 15Jan2021 at 12:53PM in the left arm/ she noticed a sore arm right afterward" on 15Jan2021, lower left side back pain on 20Jan2021, and rash on an unspecified date in Jan2021. The patient called to report a problem with her lower back after receiving the 1st dose of the vaccine. "I've had surgery and a couple of shots, the CAT scan kind. I have been fine for a while, just had a sore arm and yesterday I noticed a problem with my lower back and thought it may have been because I painted, but it is still bothering me. I remembered when I went on Lipitor I started having problems with my back about 3 weeks in, same deal. The doctor took me off and I went back on a month later and I started having problems again. Because I don't know if it was the vaccine, I am wondering if I should get the second dose." She clarified she received the first dose of the Pfizer COVID 19 vaccine on 15Jan2021 at 12:53PM in the left arm. She noticed a sore arm right afterward which lasted at least 48 hours. Then on 20Jan2021, she noticed lower left side back pain. Mentions she thinks it is at the L4 or L5 and this is the same place she had a shot there in 2018 for back pain and previously had surgery on that location in 2015. With regard to Lipitor, she is unsure of the exact year, but states it was probably back in 2017. After taking Lipitor she noticed her back pain coming back. Her doctor took her off of Lipitor for a month and it got better. Then he put her back on Lipitor and she had the same back pain problem. She stated that she is unsure if she will take the second dose and asked with regard to her back pain should she take the second dose. Outcome of  "received the first dose of the Pfizer COVID 19 vaccine on 15Jan2021 at 12:53PM in the left arm/ she noticed a sore arm right afterward" was recovered on 18Jan2021, outcome of lower left side back pain was not recovered, while outcome of rash was unknown.