she couldn't breathe very good and her heart started racing; she couldn't breathe very good and her heart started racing; Just didn't feel good; Tired; Felt queasy; Dizziness; blood sugar was low; Sore Left Arm; This is the spontaneous report from a contactable consumer. This 77-year-old female consumer reported that she received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Solution for injection; Lot number: EN6201 and expiry date: 31-May-2021) via an unspecified route of administration on 24-Feb-2021 at 08:15 in left arm (77-year-old), as dose 2, single for COVID-19 immunization. Medical history included of the patient included a dental surgery. When she got up in the morning her face was real puffy and she thought she looked like the Pillsbury dough boy. Both cheeks were swollen. This surgery was to remove a tooth. She stated that she took her premedication before her oral surgeon appointment. She previously had a kidney replacement and a shoulder replacement. She always takes pain meds before she does any dental work. She had blood pressure measurement, depression, knee arthroplasty, shoulder arthroplasty, thyroid atrophy, renal failure, coronary arterial stent insertion, hypothyroidism and steroid therapy. Concomitant medications of the patient included sertraline taken for antidepressant therapy, levothyroxine taken for hypothyroidism, potassium citrate taken for renal failure, atorvastatin taken for coronary arterial stent insertion, hydrochlorothiazide taken for blood pressure measurement, prednisone taken for steroid therapy from 27Jan2021 to an unspecified stop date; amoxicillin taken for an unspecified indication. The patient previously received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Solution for injection; Lot number: EL9265 and expiry date 31May2021) via an unspecified route of administration on 02Feb2021 in left arm (77-year-old), as dose 1, single for COVID-19 immunization and had no problems. It was mentioned that additional vaccines administered on same date of the pfizer suspect were reported as none. On 25Feb2021 the patient experienced sore left arm. On 28Feb2021 the patient did not feel good, tiredness, felt queasy, dizziness and blood sugar was low. So she had some orange juice and went about her day to grocery shop, so she laid down to take a nap and then felt okay. On 01Mar2021 she could not breathe very good and her heart started racing. Caller reported that she did not get clammy and that was why she did not feel it was hypoglycemia. She has not had that for years as she watched and made sure she does not eat too many carbs. She was tired and took a 3 hours nap. Caller states the whole time she just did not feel herself, but she just went on and pushed things aside as she had a life to live. She did not relate it to the vaccine at first. She got out her information paper and she had all of the symptoms that were on the paper besides the rash. The patient did not require emergency room and physician office visit. On an unknown date in 2021 breathing difficult, Heart racing, Feeling unwell, Tired, Felt queasy, Dizziness, blood sugar was low recovered. On 27Feb2021 sore left arm recovered. Caller would like to know if it is typical to experience side effects four days after receiving a dose of the Pfizer vaccine. Caller stated that she was home when she experienced the side effects and felt like a wet noodle and just wanted to lay down and did not seek medical attention. Caller did not clarify what the other number was that she had called and was directed to Pfizer DSU, but stated she had not made any reports previously. Caller does not have an email for her doctor at this time. She said she has not called him. She felt sick yesterday. Her cousin wanted her to go to the hospital but she said she can not do it as she could not breath good and just wanted to lie down. She was so weak. Caller mentioned that she was a little chubby, but she exercises and moves around a lot. Caller stated that she was not feeling good but went on because she has a life to live and go on with things. Caller stated she was taking Prednisone when she received her second Covid vaccination and she wondered if that had anything to do with her reaction. The patient took Excedrin Migraine for headache took Saturday, caller was unaware of dose she took. She stated that it was just over the counter. The Excedrin Migraine expiration date 21Dec and Lot SP2W, but she stated that she usually just takes Tylenol. Caller Mentioned taking normal vitamins daily and I Caps, she stated she feels like she does well for her age, and then restated that she does Damn well for her age. Caller states her family has heart disease issues during Vaccine supplemental form but continued to stated that she does not feel that was relevant to this report. Follow-up attempts were completed. No further information was expected.