eyes feel heavy but cant sleep; wears c-pap at night but still not able to rest, feeling nervous energy; tiredness; eyes feel heavy but cant sleep; SOB; This is a spontaneous report from a contactable consumer (Patient). A 82-years-old female patient received second dose of BNT162B2 (PFIZER-BIONTEC COVID-19 mRNA VACCINE, Solution for injection, Batch/lot no: ER8732 and expiry date: 31Jul2021), via an unspecified route of administration, administered in Arm right on 27Mar2021 at 13:30 (age at vaccination was 82 year-old) as a dose 2, single for COVID-19 immunization. The patient medical history included Atrial fibrillation and Neuropathy from an unknown date and ongoing. When probing concomitant medications she reported the medicine she's on was strong. When asked to clarify she reported she was on amiodarone 200mg at night. Eliquis (APIXABAN), she thought the dose was 5mg but she just changed bottles and wasn't sure of the dose. She took it twice daily. She also took Metoprolol 25mg half a tablet at night. The patient did not receive Prior Vaccinations (within 4 weeks). Historical vaccine included first dose of BNT162B2 (PFIZER-BIONTEC COVID-19 mRNA VACCINE, Solution for injection, Batch/lot no and expiry date were not reported), via an unspecified route of administration, on an unspecified date as a dose 1, single for COVID-19 immunization. The vaccine was not administered at Military Facility. She had no trouble with the first Covid 19 vaccine. She reported she felt ok until yesterday. She was tired. Her eyes felt so heavy and she wanted to sleep but she couldn't sleep. On 27Mar2021 She also was having some shortness of breath (SOB). She had some shortness of breath regularly and she was on the CPAP machine at night. She felt like these last 2 nights the CPAP machine hadn't helped. She had things to do and she pushed herself. It felt like she's exhausted and she didn't do anything. When probing specific event details she reported what could she do? Does she had to lay down and close her eyes and just not sleep? She was asking if this was normal. What could she do. Asked if this can happen later in the week like this? She felt like things were more of an effort to her. She felt nervous energy and she wanted to make sure she's not doing something wrong. Her daughter told her to call and tell Pfizer how she felt so tired and how her eyes were tired and she wanted to go to sleep. She would say the tiredness started on Wednesday night, 31Mar2021 but more yesterday, 01Apr2021 and today, 02Apr2021, especially when she got up. She's been going to bed earlier than usual. She had checked her blood pressure, her heartrate and her oxygen and it's all normal. Her cardiologist made her check every day. She only used oxygen in her CPAP machine at 5.5. Her oxygen had been 91% to 97%. She was ok after getting the Covid 19 vaccine and she was told to sit down and wait 15 minutes after getting the vaccine. Her doctor just lowered this dose. She reported her heart rate was staying in the 50's (beats per minute) and the doctor wanted her heartrate higher so he decreased the dose and it worked because now her heartrate stays in the 60's (beats per minute). There were no relevant tests. AE(s) did not require a visit to Emergency Room and Physician Office. The outcome of events tiredness, eyes feel heavy but cant sleep (Difficulty sleeping) and SOB was not recovered and for eyes feel heavy but cant sleep (Eyes heavy feeling of) and wears c-pap at night but still not able to rest, feeling nervous energy was unknown.   No follow-up attempts are needed. Information about lot/batch number cannot be requested. No further information is expected.