Lung infection; back hurt; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 78-year-old female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 05Dec2022 as dose 4 (booster), single (Lot number: GH9703) at the age of 78 years for covid-19 immunisation. The patient's relevant medical history included: "narcolepsy" (unspecified if ongoing); "cataplexy" (ongoing). The patient's concomitant medications were not reported. Vaccination history included: BNT162b2 (Dose 1, lot EL1283), administration date: 14Jan2021, when the patient was 76-year-old, for Covid-19 Immunization; BNT162b2 (Dose 2, lot EL9265), administration date: 31Jan2021, when the patient was 76-year-old, for Covid-19 Immunization, reaction(s): "Dose 1: 14Jan2021; Dose 2: 31Jan2021"; BNT162b2 (Dose 3, lot FF2588), administration date: 25Sep2021, when the patient was 76-year-old, for Covid-19 Immunization, reaction(s): "Cataplexy attacks/the patient had 1 bout of narcolepsy with cataplexy in the past and after the Pfizer vaccine had 5 bouts of it", "Cataplexy attacks/the patient had 1 bout of narcolepsy with cataplexy in the past and after the Pfizer vaccine had 5 bouts of it", "Hallucinatory dreams", "Sleep paralysis", "Extreme tiredness". The following information was reported: PNEUMONIA (medically significant), outcome "unknown", described as "Lung infection"; BACK PAIN (non-serious), outcome "unknown", described as "back hurt". The events "lung infection" and "back hurt" required physician office visit. Therapeutic measures were taken as a result of pneumonia, back pain.  Clinical course: She told her doctor she has speed bumps, and this is like going over a speed bump, but it is full blown cataplexy.  She knows more about this than any doctor she has seen except for her sleep doctor. Third dose was the one she is talking about for what happened with the reported event and it was administered she believes on 25Sep2021 with a lot number that is a much different number of FF2588 and then it might say Pfizer and she is looking at a photo of this information on her phone; 4th dose she did get and had to brave it to get it and that was on 05Dec2022 and it has two dates on there, the dose was going to be filled out on her card was on 31Jan2021 but she told them what happened and they would not give the dose to her on that date and that was the second shot when they were supposed to come back; clarified the fourth dose was a bivalent dose and was on 05Dec2022 she thinks with lot GH9703. It says on the form near her name it says reported event and said she had one bout of narcolepsy with cataplexy in the past and with the Pfizer vaccine she had five bouts of it and no she had five straight days of it and had continuous cataplexy and it was more than that. It says sleep paralysis and hallucinatory dreams and she has had that all the years in one bout and knowing what sleep paralysis is and hallucinated dreams are, until the Pfizer vaccine and she has had five straight days of it continuously. Caller had a lung infection maybe 2 months ago or less and went to internal medicine doctor and mentioned her back hurt and they said she had an infection so were putting her on an antibiotic and it was Augmentin but she has no idea if it is Pfizer's or not but it did the same thing to her but not as serious as what the booster vaccine did for the 3rd booster and she had two days continuous cataplexy and no other symptoms. She has pills she does not take any more just for such things if information is needed; no further details stated. She is very organized and has amoxicillin and has erythromycin; no further details stated.; Sender's Comments: Linked Report(s) : US-PFIZER INC-PV202200076074 same reporter/patient, different doses/AE;