Deep pain on right side of her heart; Blood pressure shot up to 180/80; At the injection site on her right arm turned all red; It turned red she started to feel like burning sensations really bad like it was on fire going down her armpit by her lymph nodes and around her heart on the right side; she had extreme pain in right arm; she had severe chest pain on the right side; Diarrhea; she had the chills really bad; Tired; Had a headache; Burning sensations really bad like it was on fire going down her armpit by her lymph nodes and around her heart on the right side; Burning pain; This is a spontaneous report from a Pfizer sponsored program received from a contactable consumer via a physician. A 60-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), via an unspecified route of administration, administered in right arm on 15Oct2021 at 11:15 (Batch/Lot Number: EW0186, at the age of 60-year-old) as dose 3 (booster), single for COVID-19 immunisation.  Medical history included ongoing thyroid issues initially provided as about 2012; but then clarified onset as being around 15 years ago, when she was 45 years old, cardiac issues from 2012 and ongoing, high blood pressure that was well controlled with high blood pressure medication since about 2012, nonalcoholic fatty liver disease and had high liver enzymes from nonalcoholic fatty liver. The concomitant medication included high blood pressure medication, cholesterol medication, and thyroid medication. The patient previously received  BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), via an unspecified route of administration, administered in right arm on 14Mar2021 at 11:00 (Batch/Lot Number: EN6206) as dose 1, single for COVID-19 immunisation and was tired and also received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), via an unspecified route of administration, administered in right arm on 02Apr2021 at 11:42 (Batch/Lot Number: FR8734) as dose 2, single for COVID-19 immunisation and also experienced tired, the other 2 Pfizer COVID Vaccine doses she was just tired with, they didn't bother her. The only thing she had with the first two doses of Pfizer Covid Vaccine was being tired, but no adverse events, that was it, no problems with the first two doses. On an unknown date in Oct2021, all of a sudden, the patient felt at the injection site on her right arm turned all red. After it turned red, she started to feel like burning sensations really bad like it was on fire going down her armpit by her lymph nodes and around her heart on the right side. The burning went on for several hours. The patient was said to take Ibuprofen, or Tylenol. Because she had high liver enzymes from nonalcoholic fatty liver and was taking cholesterol medication, thus she was not supposed to take a lot of that unless she had to. So, she took 2 and event went away. About 2-4 hours event came back worse, and then was progressively getting worse for 24 hours. She ended up on emergency room night in Oct2021. She was treated pretty shabbily by the people in there. Her blood pressure shot up to 180/80 and she had this burning pain, painful and burning. She thought well, she was a cardiac patient, so she had better go to the doctor, the emergency room. She ended up in the emergency room at midnight, WI-this would have been midnight of 17Oct2021-as this was night of 16Oct2021 into midnight of 17Oct2021 (as reported). The emergency room doctor didn't record that she had diarrhea that day; and she had severe chest pain on the right side; this is on right side where she got the shot; it didn't say those symptoms on the card she got from the Health Department; so she was starting to be concerned that she could be having a stroke. She was not admitted to the emergency room or hospital. She went in because she had extreme pain in right arm like it was burning out and then around her right side of her heart, she felt burning sensations and deep pain on right side of her heart; that's why she went there. They did not so any test at all. They put the oxygen thing on her and monitored her oxygen and her heart and blood pressure that's all they did. Outcome of event provided as improved, they were gradually going away. Saturday when she woke up she had diarrhea really bad but then that subsided, that stopped; and then she had the chills really bad, tired, had a headache, but that didn't happen until after 12 hours. The outcome was recovered in Oct2021 for diarrhea, chills, tired, headache and recovering for the rest of the events.  No follow up attempts are possible. No further information is expected.