really tired; stomach hurt; headache off and on; It did not feel right; she has little energy and not back to where she was; This is a spontaneous report received from contactable reporter(s) (Consumer or other non-HCP). The reporter is the patient.  A 65-year-old female patient received BNT162b2 (BNT162B2), on 23Apr2022 at 11:15 as dose 4 (booster), 30 ug single (Lot number: FP4554) at the age of 65 years, in right arm for covid-19 immunisation. The patient's relevant medical history included: "Back pain" (unspecified if ongoing); "Knee pain" (unspecified if ongoing). Concomitant medication(s) included: MELOXICAM oral taken for back pain; TRAMADOL HCL oral taken for arthralgia. Vaccination history included: BNT162b2 (1st dose Pfizer COVID-19 Vaccine: MRNA Pfizer , Lot number: ER2613), administration date: 20Mar2021, when the patient was 64-year-old, for COVID-19 immunization; BNT162b2 (2nd dose Pfizer COVID-19 Vaccine: MRNA Pfizer , Lot number: EW164), administration date: 19Apr2021, when the patient was 64-year-old, for COVID-19 immunization; BNT162b2 (3rd dose Pfizer COVID-19 Vaccine: MRNA Pfizer , Lot number: 30155BA), administration date: 15Nov2021, when the patient was 65-year-old, for Covid-19 immunization. The following information was reported: FEELING ABNORMAL (non-serious) with onset 23Apr2022, outcome "unknown", described as "It did not feel right"; HEADACHE (non-serious) with onset 23Apr2022, outcome "recovered" (25Apr2022), described as "headache off and on"; FATIGUE (non-serious) with onset 23Apr2022, outcome "recovering", described as "really tired"; ASTHENIA (non-serious) with onset 23Apr2022, outcome "unknown", described as "she has little energy and not back to where she was"; ABDOMINAL PAIN UPPER (non-serious) with onset 23Apr2022, outcome "recovered" (25Apr2022), described as "stomach hurt".  Additional Information: She states she started Meloxicam 2 years ago. Dosage text: 15mg one tablet by mouth every day. Indication for use in the case: Back pain. Additional Information for Other medicines Tramadol HCl: She states 3 times daily but states she only takes the Tramadol once a day. She states she started Tramadol HCl probably 3 years ago. Dosage text: 50mg one tablet by mouth once a day. Indication for use in the case: Knee pain. Additional Context: Patient is calling about the Pfizer shot she received this past Saturday. She states yesterday she felt really tired and her stomach hurt and had a headache off and on. It did not feel right. She states still today she has little energy and not back to where she was. She confirms she is just calling to report these symptoms after her booster on Saturday. She confirms she is calling about the Pfizer COVID-19 Vaccine. She states this COVID-19 vaccine was her 4th shot. Event Details: Really tired: She states really tired started Friday about 2 o'clock when she got up and then clarifies that she received the COVID-19 vaccine on Saturday, 23Apr2022, and started feeling tired in the afternoon after the shot. Outcome: She states really tired is a little bit better but not back to where she was as she is usually pretty energetic. Reporter states today is not as bad as yesterday. Stomach hurt: Reporter states her stomach didn't hurt this morning, 25Apr2022, when she got up. Headache off and on: She states her head feels like she is trying to get a headache and a headache is trying to come but is not a full headache. She states her head feeling like she is trying to get a headache started the afternoon to evening of 23Apr2022. Outcome: She states she doesn't feel that way anymore since this morning when she got up. She states after she looked at her card she was 65 years old on her last 2 shots so her 3rd and 4th dose of the COVID-19 Vaccine. She confirms she was 64 on her 1st and 2nd dose of the COVID-19 Vaccine.   If follow-up activities cannot be or are not conducted: No follow-up attempts are possible. No further information is expected.