There is a little redness around it, but it hasn't went into bruising yet.; in between her shoulder and neck area a nodule that is about 2cm in diameter. It is hard and painful; This is a spontaneous report from a contactable nurse (patient). A 53-year-old female patient received the second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection, batch/lot number and expiration date were unknown), via an unspecified route of administration on 27Jan2021 at single dose for COVID-19 immunization (based on contact with COVID positive patients). The patient had no medical history. There were no concomitant medications. She got the initial injection 06Jan2021 (at the age of 53 years old), in her upper left arm. Two days later, she noticed a huge bruise. She had bruising on various parts of body. The first bruise she noticed on the 08Jan2021. It was probably about 3.5 in. in length 2 in. in width. It didn't necessarily have a shape. She had a large bruise on her right buttock. Two days later, she noticed a similar in size bruise on the front of her right thigh. Then a a couple days later, she noticed three quarter size bruises on her right arm (2 on the inner part of arm, and 1 on the outer, both on upper arm). The very next day, she developed the same sizing bruise. It was about the same size on her left upper arm. Just the one. There were no other side effects besides the bruising. There was no itching or redness, no skin, respiratory, or neurological issues. She received the 2nd vaccine yesterday, 27Jan2021. She didn't have a prescribing doctor. She got it based on contact with COVID positive patients. The day before the vaccine, 26Jan2021, she noticed a 4 inch reddened area with a two centimeter nodule inside that bruise. Today (28Jan2021), the day after the vaccine, she now has, on her left side, in between her shoulder and neck area a nodule that was about 2cm in diameter. It was hard and painful. There was a little redness around it, but it hasn't went into bruising yet. This is how the other ones started. There was a little redness and a bruise appeared. All of the bruises didn't have nodules. The nodule is present now. The initial bruises have begun to heal. They were not as dark as they were. The one that was noticed the day before yesterday is beginning to darken. They started out red and then turn black and blue. The one she noticed today 28Jan2021 is just the nodule. No discoloring has occurred yet. She can't answer seriousness yet because she doesn't know how serious it is yet. She also had numbness and tingling in her right thumb and was having some chest discomfort after the initial injection that is still ongoing. That chest discomfort prompted her to go to urgent care on 08Jan2021. She had an abnormal EKG 08Jan2021. They told her to follow up with a cardiologist so she did. She saw the cardiologist on Monday 25Jan2021. He did an EKG and ECHO. The EKG was abnormal, but the doctor was unable to determine when the heart attack occurred. He also ran labs. He did a Troponin to see if anything was acutely going on, and a D Dimer to evaluate her clotting factors. Both were negative. He recommended a CT scan. She is scheduled for a CT scan this Saturday for a Heart Coronary Calcium Score testing. Causality was not provided by the patient and was also unable to provide seriousness. The outcome of the events was unknown.   Information on the lot/batch number has been requested.