weakness/can't hardly get out of bed; He is really tired, fatigued; drowsy/constantly wanting to sleep; can not make it to the bathroom; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) for a Pfizer sponsored program.  A 73 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 17May2021 10:00 (Lot number: ER8736) at the age of 73 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "pneumonia", start date: Feb2021 (unspecified if ongoing), notes: verbatim: Because he got pneumonia and COVID back in February; "COVID", start date: Feb2021 (unspecified if ongoing), notes: verbatim: Because he got pneumonia and COVID back in February. The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (1st dose, anatomical location: left arm, lot number: ER8737, time: 10:00), administration date: 26Apr2021, when the patient was 73 years old, for Covid-19 immunization. The following information was reported: FATIGUE (non-serious) with onset 17May2021, outcome "not recovered", described as "He is really tired, fatigued"; SOMNOLENCE (non-serious) with onset 17May2021, outcome "not recovered", described as "drowsy/constantly wanting to sleep"; FEELING ABNORMAL (non-serious) with onset 17May2021, outcome "not recovered", described as "can not make it to the bathroom"; ASTHENIA (non-serious), outcome "unknown", described as "weakness/can't hardly get out of bed". Therapeutic measures were not taken as a result of fatigue, somnolence, feeling abnormal, asthenia.  Additional information: Reporter stated she was a caregiver and clarified that she was not a nurse, doctor, or a pharmacist. Reporter stated she was calling about the COVID 19 vaccine. Reporter stated she was a provider and has a 73 year old man and got his last shot yesterday and he is really fatigue, drowsy, could not make it to the bathroom, did not have a high blood pressure, constantly wanting to sleep. Reporter stated the patient did have a primary care physician but declined to provide the information. The second dose is the suspect product as the reporter stated that the symptoms started the night he got the vaccine. When clarified if it is was the second shot, Reporter stated, yeah the last dose. When paraphrased the concern Reporter confirmed the same. Reporter was informed about Pfizer Medical Information Department and offered the number, reporter denied taking it and stated, not to worry as she would just call the Health Department, since they could not help her. And then Reporter hung up the call. So further probing could not be done. Reporter told that patient did not required a visit to emergency room or physician office. Patient did not take any vaccine Prior Vaccinations (within 4 weeks) and did not had any adverse events following prior vaccinations. Patient did not have any relevant tests. Reporter seriousness for Tired; Fatigue; Weakness; cannot hardly get out of bed was reported as unspecified. Reason for no lot number of COVID 19 Vaccine was reported as complainant hung up abruptly/transfer incomplete.  No follow-up attempts are possible. No further information is expected.