Blood sugar has gone up/Blood sugar started increasing; Burning in chest; Had trouble keeping head up; Nauseous; Pain between shoulder blades; Pain at injection site; Did not feel good; Heartburn; Bones hurt worse than usual; This is a spontaneous report from a contactable consumer (patient). A 91-year-old female patient received the second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot Number: EL9269, Expiration Date: 31May2021) intramuscularly, administered in left arm on 12Feb2021 at 14:55 (at age of 91 years old) at a single dose for COVID-19 immunization. Medical history included type 2 diabetes (Diagnosed 15-16 years before this reporting), high blood pressure prior to that. She lost a lot of weight since she found out she was diabetic, which was prior to getting vaccine, around 15-16 years before this reporting. She lost 50 lbs in 15 years. It has been gradually. She gets Prolia shots and did not get one this month. She has scoliosis and osteoporosis and that was one of the things that happened. She had previously broken her shoulder blade and some ribs on her right side. She confirmed that she broke it over a year before this reporting. She has a yellow mark and a little reddish mark that looks like someone hit you. It is still there and it is a fading black and blue mark and does not hurt any more. She takes blood pressure medicine. She does not take diabetic medication. She did in the past, but it caused her ankles to swell and then she started controlling it with diet. She was right handed and had trouble trying to do things with her left hand. This started prior to the vaccine. Family medical history included: Family heart issues and diabetes. Heart disease and cancer in the family. There were no concomitant medications. The patient previously took Prolia for back problems. The patient previously took BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Lot Number: EL9261, Expiration Date: 31May2021) on 22Jan2021 at age of 91 years old at a single dose for COVID-19 immunization. She didn't have any problems after the first COVID-19 Vaccine. No additional Vaccines administered on same date of the Pfizer Suspect. The patient experienced blood sugar has gone up/blood sugar started increasing on 15Feb2021 at 08:00, pain at injection site on 12Feb2021 at 14:55, pain between shoulder blades on 12Feb2021 at 20:30 to 21:30, had trouble keeping head up on 13Feb2021 at 07:30, nauseous on 13Feb2021 at 07:30, burning in chest on 13Feb2021 at 08:30, did not feel good on 12Feb2021 at 08:30, heartburn on 12Feb2021 at 08:30, bones hurt worse than usual on 12Feb2021 at 07:30. She has stated her blood sugar has gone up since she's received the second dose of Pfizer's COVID vaccine on 12Feb2021. Blood sugar started increasing was reported as worsened. She was type 2 diabetic and does not take any medicine. She got second shot on 12Feb2021, and her sugar was 89, then she started not feeling good the day after. On 15Feb2021, she was checking it and it was 119. On 16Feb2021, it was 145. On 17Feb2021, it was 144, and 18Feb2021, it was 145. She had never had them this high. It does not mention it can do anything to your sugar. She does not know her height. Last she was measured was 4'6"-4'7". Her highest was 5 feet. This was prior to the vaccine. She said her weight was between 80-85 lbs. The second shot hurt when they gave it to her. About 6 hours later, it felt like she was hit by lightning between her shoulder blades. She had previously broken her shoulder blade and some ribs on her right side. That has been bothering her and it felt worse when she got the vaccine and she could hardly lift her head up. The pain went from her left shoulder blade to right shoulder blade and stopped right away and then it felt like a lightening thing. She had trouble keeping her head up. She still has trouble with shoulders and is putting heating pads on them. She felt nauseous off and on. Her bones usually hurt, but after the second injection they hurt worse. As long as she puts heat on them, it feels better. The second dose feel like it hit the bone. The first one did not feel that way. The outcome of the event "Blood sugar increased, Chest burning, Feeling abnormal, Heartburn, Bone pain" was not recovered, for events "Shoulder blade pain, Heaviness of head, Nauseous" was recovering, for event "Vaccination site pain" was unknown.