no strength to go to the restroom or get up out of the chair; ambled, weird gate.; Low grade fever; chills; Sweaty; This is a spontaneous report from a contactable consumer. This consumer reported  for a 70-year-old male patient (Husband) that:  A 70-years-old male patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Lot number: EN6205, Expiry Date: unknown), via an unspecified route of administration, administered in Arm Right on 06Mar2021 09:50 (at the age of 70 years old) as 1ST DOSE, SINGLE for covid-19 immunisation.  Medical history included cardiac disorder from an unknown date and unknown if ongoing (Verbatim: hereditary heart disease), pacemaker (cardiac pacemaker insertion) from an unknown date and unknown if ongoing (Verbatim: pacemaker) , Bypass (vascular graft) from an unknown date and unknown if ongoing (from 20 years with Bypass 10 years ago), covid-19 from 2020 to 2020 (he had COVID 19 before on the 03Oct2020 through the middle of Nov2020 but is now fully recovered), blood thinner (blood disorder) from an unknown date and unknown if ongoing , sugar (blood glucose abnormal) from an unknown date and unknown if ongoing , prostate (prostate infection) from an unknown date and unknown if ongoing, acid reflux  (gastrooesophageal reflux disease) from an unknown date and unknown if ongoing , heart/shrinks the heart (cardiac disorder) from an unknown date and unknown if ongoing, blood cholesterol from an unknown date and unknown if ongoing. It was reported that History of all previous immunization with the Pfizer vaccine considered as suspect was none. Additional Vaccines Administered on Same Date of the Pfizer Suspect was none. Prior Vaccinations (within 4 weeks) was no. Family Medical History was no.The patient experienced low grade fever, chills, sweaty on 07Mar2021, no strength to go to the restroom or get up out of the chair, ambled, weird gate. on 09Mar2021. He stated By Sunday patient was sick with low grade fever; chills; then by Tuesday  had no strength to go to the restroom or get up out of the chair; and caller had to take him to the emergency room on Wednesday because it lasted more than a day. They were told these were symptoms of the vaccine and they were sent back home. The patient  was not admitted to the hospital. Adds on Tuesday also noticed when caller helped him get up and patient just kind of ambled, it was weird a gate. Adds they expected his symptoms to get better and finally when caller took him to the emergency room on 09Mar2021, patient was so weak, caller couldn't get him out of the chair or go to the restroom. She Mentioned  patient had COVID 19 before on the 03Oct2020 through the middle of Nov2020 but was now fully recovered. Adds even with COVID 19 it never was this debilitating. Caller clarified patient goes between chills and being hot and sweaty when patient breaks the fever. Patient  gets a fever or 99 or 98 then breaks the sweat when the fever was done. Adds when patient did not cold patient was hot and sweaty and had to change clothes. He stated all the doctor's had told him the second dose was worse than the first. Patient was scheduled 27Mar2021 at 10:30 to get the second dose but  was going to consult HCP first and do whatever he recommends. He stated just thought someone should know that these symptoms can last longer than a day or two.It was reported that Investigation Assessment was No. The patient went to the emergency room but not admitted. Relevant test were none. The outcome of event Low grade fever, no strength to go to the restroom or get up out of the chair was not recovered for event chills, Sweaty, ambled, weird gate outcome were recovering.  No follow-up attempts are possible. No further information is expected.