Caller states about an hour to 2 hours later she was dizzy; lightheaded; caller was just tired; Started an antibiotic, Doxycycline, yesterday for a sinus infection; started having muscle weakness to my legs, they feel weak and heavy; I can walk, they just feel heavy; Caller didn't start getting a runny nose and stuff until a few days after getting the vaccine; then caller's ears started hurting a few days after; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 49 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 01Mar2022 10:30 (Batch/Lot number: unknown) at the age of 49 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "pancreas issues" (unspecified if ongoing). The patient's concomitant medications were not reported. The following information was reported: MUSCULAR WEAKNESS (non-serious) with onset Mar2022, outcome "unknown", described as "started having muscle weakness to my legs, they feel weak and heavy"; LIMB DISCOMFORT (non-serious) with onset Mar2022, outcome "unknown", described as "I can walk, they just feel heavy"; RHINORRHOEA (non-serious) with onset Mar2022, outcome "unknown", described as "Caller didn't start getting a runny nose and stuff until a few days after getting the vaccine"; EAR PAIN (non-serious) with onset Mar2022, outcome "unknown", described as "then caller's ears started hurting a few days after"; DIZZINESS (non-serious) with onset 01Mar2022, outcome "recovered" (01Mar2022), described as "Caller states about an hour to 2 hours later she was dizzy"; DIZZINESS (non-serious) with onset 01Mar2022, outcome "recovered" (01Mar2022), described as "lightheaded"; FATIGUE (non-serious) with onset 01Mar2022, outcome "unknown", described as "caller was just tired"; SINUSITIS (non-serious) with onset Mar2022, outcome "unknown", described as "Started an antibiotic, Doxycycline, yesterday for a sinus infection". Therapeutic measures were not taken as a result of muscular weakness, limb discomfort. Therapeutic measures were taken as a result of rhinorrhoea, ear pain, sinusitis.  Additional Information: Reaction/event as reported by primary source: feel muscle weakness in legs, legs felt weak and heavy. Outcome of reaction/event at the time of last observation: NOT RECOVERED/NOT RESOLVED. Reason for no lot number: of COVID-19 vaccine: Complainant does not have the product with them at the time of call. Why was the patient taking COVID-19 vaccine (Verbatim): caller has health issues so she needed to get the vaccine. Concomitant products: Started an antibiotic, Doxycycline, yesterday for a sinus infection. Caller didn't start getting a runny nose and stuff until a few days after getting the vaccine and then callers ears started hurting a few days after, like 3 days after the caller got the vaccine. Doxycycline NDC number, lot number, expiration date: unknown. All caller knows is the name of the product. History of all previous immunization with the Pfizer vaccine considered as suspect (or patient age at first and subsequent immunizations if dates of birth or immunizations are not available): This was the patients first dose. Additional Vaccines Administered on Same Date of the Pfizer Suspect If applicable, list all vaccines administered on same date with the Pfizer vaccine considered as suspect: None, Caller states about an hour to 2 hours later she was dizzy, lightheaded, but that went away an hour later, caller was just tired, and then the other stuff came on. Did any AE(s) require a visit to: Emergency Room? No, Physician Office? No, AE(s) following prior vaccinations: None, Patients Medical History (including any illness at time of vaccination)? Just has pancreas issues, and other health issues. Family Medical History Relevant to AE(s): Unknown, caller is adopted. Relevant Tests: None,  The lot number for bnt162b2 was not provided and will be requested during follow up.