Flu like symptoms; Injection site pain; The opposite arm started hurting/ she got up the pain in the right arm, it was excruciating pain; Can't even lift my arm/ still can't lift the opposite arm, right arm; I have swollen lymph nodes; A little knot there and explains this was expected; she started feeling the flu like symptoms, reporting them as exhausted and muscles aches; she started feeling the flu like symptoms, reporting them as exhausted and muscles aches; This is a spontaneous report received from contactable reporter(s) (Other HCP) from medical information team.   A 48 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 28Jul2021 (Lot number: EW0217) at the age of 48 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "High Blood Pressure" (unspecified if ongoing). Concomitant medication(s) included: XOLAIR (ongoing); SINGULAIR (ongoing). Past drug history included: Keflex, reaction(s): "Allergies: Keflex", notes: she has had anaphylactic reactions 3 times with 3 different medications over the last 3.5 years. The products were Keflex, Zithromax, and Levaquin (antibiotics).; Zithromax, reaction(s): "Allergies: Zithromax", notes: she has had anaphylactic reactions 3 times with 3 different medications over the last 3.5 years. The products were Keflex, Zithromax, and Levaquin (antibiotics).; Levaquin, reaction(s): "Allergies: Levaquin", notes: she has had anaphylactic reactions 3 times with 3 different medications over the last 3.5 years. The products were Keflex, Zithromax, and Levaquin (antibiotics). The following information was reported: INFLUENZA LIKE ILLNESS (non-serious) with onset 29Jul2021, outcome "unknown", described as "Flu like symptoms"; VACCINATION SITE PAIN (non-serious) with onset 29Jul2021, outcome "not recovered", described as "Injection site pain"; PAIN IN EXTREMITY (non-serious) with onset 29Jul2021, outcome "recovering", described as "The opposite arm started hurting/ she got up the pain in the right arm, it was excruciating pain"; MOBILITY DECREASED (non-serious) with onset 29Jul2021, outcome "recovering", described as "Can't even lift my arm/ still can't lift the opposite arm, right arm"; LYMPHADENOPATHY (non-serious) with onset 29Jul2021, outcome "unknown", described as "I have swollen lymph nodes"; VACCINATION SITE NODULE (non-serious) with onset 29Jul2021, outcome "not recovered", described as "A little knot there and explains this was expected"; FATIGUE (non-serious), MYALGIA (non-serious) all with onset 29Jul2021, outcome "unknown" and all described as "she started feeling the flu like symptoms, reporting them as exhausted and muscles aches". Therapeutic measures were taken as a result of influenza like illness, vaccination site pain, pain in extremity, mobility decreased, lymphadenopathy, vaccination site nodule, fatigue, myalgia.  Additional information: Caller states "I received it (the vaccine) on Wednesday (28Jul2021, time of the vaccination was 2:00pm -2:30pm), I read about some of the side effects: flu like symptoms, injection site pain. It was 24 hours or longer after I got it and the opposite arm started hurting. I looked it up but didn't find anything. I can't even lift my arm, the pain is like someone snapped your humerus, hurts under my arm, like I have swollen lymph nodes. I have the regular injection site pain on the left side where I got the shot, but this is-I don't know how to describe it. It's into my bone I can't sit up to sit up off the couch. I just expected to be in the arm I got the shot." Caller asks "are there any reports of swollen lymph nodes or pain in the opposite arm"? Concomitant Products Xolair, last dose was on 13Jul2021. She went to laid down and when she got up the pain in the right arm, it was excruciating pain and she couldn't even lift her arm. She took Motrin for treatment. The pain was a 10 last night and is now a 7 with treatment. She called to see if we have heard of having pain on the opposite arm. she has not had a reaction to a vaccine but she has had allergic reactions in the past. There was no PA 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). No additional vaccines administered on same date of the Pfizer Suspect. No adverse event required to visit emergency Room or Physician Office. The patient did not receive prior vaccinations (within 4 weeks). No AE(s) were reported following prior vaccinations. There was no patient's medical History (including any illness at time of vaccination) was reported. The patient did not take any relevant tests. Reporter did not provide seriousness for any of the events.  Follow-up attempts are completed. No further information is expected.