Fatigue extreme; Not want to eat breakfast, did not have energy just wanted to sleep/  feel very weak; Dizzy; Spinning around like in a tunnel/ Vertigo; Had like 4 attacks a day and I did not hold down laying in bed and looking up ceiling and ceiling starts spinning; Frightening; little warm in the arm; Resting heart rate but the oxygen was running low it was like 84-80; I don't feel good;; Hit me like a rocket; This is a spontaneous report received from a contactable consumer (Patient) via a Pfizer Sponsored program. A 77-year-old female patient received second dose of BNT162B2, (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot number: Not Reported), via an unspecified route of administration on 16Feb2021 as single dose for COVID-19 immunisation. edical history included ongoing hypertension, ongoing COPD (chronic obstructive pulmonary disease) and ongoing acid reflux. Concomitant medication included metoprolol succinate at 50 mg, once a day for hypertension, alprazolam (XANAX) at 2.5 DF, twice a day for anxiety, albuterol at Every 3 to 4 hours as needed for chronic obstructive pulmonary disease, budesonide at 5 mL, twice a day for chronic obstructive pulmonary disease, arformoterol tartrate (BROVANA) at twice a day morning and night for chronic obstructive pulmonary disease, tiotropium bromide (SPIRIVA) Inhaled through the mouth, once a day as a bronchodilator, aspirin, omeprazole (PROTONIX) at 40 mg, once a day for Acid reflux, diltiazem at 300 mg, once a day for hypertension and unspecified vitamins. Patient historical vaccine included first dose of BNT162B2 for COVID-19 immunization received on 26Jan2021 and experienced warm arm. It was reported that, the patient had a very bad experience with the shot. On Tuesday in this rehabilitation, they were giving out the shot, this was her second shot in this place. The first shot she had no reaction, just a little warm arm. On an unspecified date in Feb2021, the second hit her like a rocket, the day after the shot or the day over the shot just a little warm in the arm nothing really, the next day woke up extremely fatigued did not even want to eat breakfast did not have the energy just wanted to sleep and she said what was going on with her and then she got up very fatigued. Then the physical therapist came in to give physical and they "supposed to" (not clarified) her. It showed a good blood pressure everything was good resting heart rate, but the oxygen was running low it was like 84-80 and she knew she was because she could feel it while she was walking and patient told them she does not feel good, she felt very weak and thought it must be from the shot. So that went on then and go on to this same thing very dizzy on the next day of second shot on 17Feb2021, spinning. That day spinning around in like a tunnel. She had like 4 attacks a day and she did not hold down that she was laying in her bed and she was looking up in the ceiling and this ceiling starts spinning with the whole room. That was 4th of those on Thursday, Wednesday she was just tired, Friday she had less of them but the same thing spinning around, never fell down but again it was not while she was standing up. The physical therapist said to her sit up do not lay down in the bed. Now she was taking pulmonology medication through a nebulizer. Patient also taking bronchodilator and she take a prednisone pill 20 mg, albuterol and she take other medication. Patient did the Covid test when he had blood work up. They do a blood work up every 2 weeks here. But everything was good. The outcome for events was reported as unknown.   Information about lot/batch number has been requested.