her oxygen goes down to 75 which is a heart attack.; having breathing problems with her lungs; sleep apnea; level 3 or 4 her oxygen is 94 or 95/her oxygen goes down to 75; She is tired; high blood pressure; This is a spontaneous report from a contactable consumer (patient herself). A 67-year-old female patient received BNT162B2 (Pfizer-BioNTech COVID-19 mRNA vaccine), dose 2 via an unspecified route of administration, at age 67 years, on 20Apr2021 (Batch/Lot Number: ER8735) as DOSE 2, SINGLE for COVID-19 immunisation. Relevant medical history includes patient living in a studio apartment. When she would get up to go to the mailbox downstairs in an elevator she was overweight. She gained weight since all this COVID mess started. She had gained 20 pounds since because she is a stress eater. The only problem she has ever had was when she had pneumonia 5 years ago (2016). Patient was also not feeling well enough to take second shot in 2021. Patient hasn't been working at all since 2013 because of a car accident and rotator cuff surgeries. She is also dealing with a concussion also from an accident. She had a fever the whole month of Feb2021 and Mar2021. She had been coughing and thought it was allergies. When she couldn't walk for exercising in the pool, she knew something was wrong. She couldn't catch her breath in the shower. The patient's concomitant medications were not reported. Patient historically received the first dose of BNT162B2  (Lot: EN6955) on 30Mar2021, at age 67 years, for COVID-19 immunisation and experienced had problems with the lungs with the first shot, but didn't know what the symptoms were. She can't function. Patient didn't know what was going on but she didn't feel well. With the first one she had fever and cough. The nurse said that those were symptoms and patient should have second one anyway, so patient did. It was her choice. Patient was given the first dose before her son's wedding then on an unspecified date in 2021, patient noticed it was bad. Patient missed her son's wedding in 02Apr2021. She couldn't go to the wedding because she couldn't breathe. She didn't know to bend over or sit down. She can't even stand up long enough to take it off for five minutes. When taking oxygen off it drops right away. Patient was not used to not having air. Patient's breathing problems started on an unspecified date in 2021 (pending clarification). She had an inhaler that the doctor gave her to see if it would work and open up the lungs. It does open up the lungs. Doctor said that she needed to be on oxygen 24/7. Patient stated that the nurse said she should still have the second injection. Patient told the nurse when she was there that she wasn't feeling well enough in 2021 to get second shot. The nurse said if it got worse to go to the hospital. Patient doesn't want to go to hospital. The hospitals were full. Patient had both shot of COVID-19 Vaccine and had breathing problems with her lungs. Two months ago (Aug2021), patient called her primary and told them she couldn't breathe from an unspecified date in 2021 and didn't know what was going on. She didn't know if she had sleep apnea. She knows how to breathe and does meditation. She has been a Withheld for 30 years and knows how to breathe to get breath. It became where even if she is talking it takes the breath away. It is not getting better. She doesn't know. It was suggested that they have had reports at a hospital where people have had damage to the lungs because of the injection. The only problem she has ever had was when she had pneumonia 5 years ago (2016). Now she is on an inhaler and has to have 24/7 oxygen. When it is on level 3 or 4 her oxygen is 94 or 95. When she takes it off when she needs a break, because it is nice to take a shower without a cord attached, her oxygen goes down to 75 which is a heart attack. She is tired. She had to purchase this out of pocket. She wants to be reimbursed. It is not right and it is not fair. She has never had anything wrong with the lungs ever. It created high blood pressure because she was not getting oxygen to her heart. She has grandchildren and can't even go from her apartment down stairs to her car and there is an elevator. It is 50 feet to her car and her oxygen goes down to 73 or 75. Her boyfriend has portable and she doesn't want to share it. Patient had to pay out of pocket for the 24 hour condenser and 3 months ago and she just got her home concentrator. Patient was tired of talking to people. She is exhausted. She is also dealing with a concussion also from an accident. The outcome of the events was unknown.