Hard time sleeping; Felt like the fluid they put in her was gradually seeping into her body; Wasn't feeling good at all; Tired; Headache; Shortness of breath; Pain going through her chest; Pain going through her chest and back; Pain going through her chest and back and legs / Her legs hurt; This is a spontaneous report received from a contactable reporter (Consumer or other non HCP). The reporter is the patient.  An 84-year-old female patient received bnt162b2 omi xbb.1.5 (COMIRNATY (2023-2024 FORMULA)), on 25Sep2023 as dose 4 (booster), single (Lot number: 3O1358A) at the age of 84 years, in right arm for covid-19 immunisation; influenza vaccine (FLU [INFLUENZA VACCINE]), on 25Sep2023 as dose number unknown, single (Batch/Lot number: unknown), in left arm for immunisation. The patient's relevant medical history included: "Breast cancer" (unspecified if ongoing); "Heart surgery" (unspecified if ongoing); "Blood disorder" (unspecified if ongoing); "She doesn't taste or smell" (unspecified if ongoing); "She doesn't taste or smell" (unspecified if ongoing); "Fell", start date: 2016 (unspecified if ongoing); "Broke femur", start date: 2016 (unspecified if ongoing). Concomitant medication(s) included: ATORVASTATIN taken for cardiac operation (ongoing); ATENOLOL taken for blood disorder (ongoing); CITALOPRAM; LETROZOLE taken for breast cancer. Vaccination history included: bnt162b2 (dose 1, single; lot number: EN6200), administration date: 28Feb2021, when the patient was 82-year-old, for COVID-19 immunisation; bnt162b2 (dose 2, single; lot number: EN6206 or EN6286), administration date: 21Mar2021, when the patient was 82-year-old, for COVID-19 immunisation; Bnt162b2 (dose 3 (booster), single), for COVID-19 immunisation. The following information was reported: HEADACHE (non-serious) with onset 25Sep2023, outcome "recovered" (26Sep2023); CHEST PAIN (non-serious) with onset 25Sep2023, outcome "recovered", described as "Pain going through her chest"; BACK PAIN (non-serious) with onset 25Sep2023, outcome "recovered", described as "Pain going through her chest and back"; PAIN IN EXTREMITY (non-serious) with onset 25Sep2023, outcome "recovered", described as "Pain going through her chest and back and legs / Her legs hurt"; DYSPNOEA (non-serious) with onset 25Sep2023, outcome "not recovered", described as "Shortness of breath"; INSOMNIA (non-serious), outcome "unknown", described as "Hard time sleeping"; FEELING ABNORMAL (non-serious), outcome "unknown", described as "Felt like the fluid they put in her was gradually seeping into her body"; MALAISE (non-serious), outcome "recovering", described as "Wasn't feeling good at all"; FATIGUE (non-serious), outcome "not recovered", described as "Tired". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of pain in extremity, insomnia, dyspnoea. Additional information: The patient reported that she went in ang got Pfizer COVID shot at (witheld) on 25Sep2023. She got it in one arm and the flu shot in the other arm. When she got up she walked a short distance and she started feeling pain going through her chest and back and legs. By the time she got outside to get in the car she thought she wouldn't make it. She hurt so bad she thought she was dying. It felt like the fluid they put in her was gradually seeping into her body and that was when it started really hurting. She got in the car and sat there. The people did come out of [withheld] and checked on her and she had stopped having the severe pain like she did when she first came out. She had a hard time sleeping last night prior to the report. Her legs hurt. She couldn't sleep and had put heating pad on legs. She had a headache. She had shortness of breath. She really wasn't feeling good at all. She felt better at the time of the report. She still had a little short of breath. She has an inhaler, albuterol or something, and used that last night prior to the report. She hasn't gone see the doctor yet. If something happens and she is worse she will. She doesn't feel that was necessary at the time of the report. The pain was all gone at the time of the report. She has recovered ok with it. was tired at the time of the report. She didn't sleep much, she went back to bed and slept until 1:30PM at the time of the report. The headache was gone completely at the time of the report. She got the vaccine since she goes to (withheld) and different places and want to be safe, wants to be safe around people. She was glad she got the shot afterwards. The patient mentioned that she has fallen and broke her femur bone 7 years prior to the report. She was getting out of the bed and turned to put feet down and the bed was so high off the floor her feet went underneath the bed and she fell. Had to have metal put in that. She was in rehab for 21 days. They got on her really fast. She has had cancer. She was going for blood work every 6 months. When she got back from (withheld) her doctor said that everything was excellent. She watches what she eats, and she lost some pounds recently. She doesn't taste or smell and that was not due to COVID. She has had that for a long time. She can taste a few things. She can smell a little bit, but not that much.