Sudden onset of breathlessness; strange headaches; More tired than usual; This is a spontaneous report from a contactable consumer (patient). A 68-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Solution for injection, Lot Number: EN6201), via an unspecified route of administration in the left arm on 16Feb2021 at 14:05 as dose 2, single for COVID-19 immunization (at the age of 68-years-old). Medical history included moderate asthma, she hasn't had it all her life but a good number of years, pulmonary embolism from 2014 to an unknown date, she only knows because she was just in the hospital recently that it was 2014 and cutaneous t-cell lymphoma, in her skin from 2000 to an unknown date and now she was in remission. She was sensitive to medications, so was her mother she had a long history. Caller won't take the pneumonia vaccine because she had a little thing after the pneumonia vaccine one time, she got pneumonia and was hospitalized for 4 weeks, she had no idea if it was related. Her mom, when she had the pneumonia vaccine at the doctor's office had a severe reaction. Her mom had reactions a lot. Concomitant medication included asthma inhalers, she has been on them for years, she can't remember when she started them, she guesses it's been 10 years. Historical vaccine included first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Solution for injection, Lot Number: EL9261), via an unspecified route of administration on 26Jan2021 as dose 1, single for COVID-19 immunization (at the age of 68-years-old) after which she had a sudden onset of breathlessness and pneumococcal vaccine and experienced pneumonia. The patient did not receive any other vaccines within 4 weeks prior to the COVID-19 vaccine. On 16Feb2021 she got the second shot, afterwards there was nothing for the first few days, she was more tired than usual. It wasn't until 10 days after the second shot that she had a sudden onset of breathlessness. This time she was in the shower and she had suds in her hair so she couldn't lay down right away and it took her a few minutes to get to the bed. It was an intense episode, it lasted maybe 5 to 10 minutes to catch her breath. She went to the ER, her doctor wanted her to go to the ER because she has a history of pulmonary embolism and he wanted her to get checked out. She was cleared by the cardiologist. She thinks it was the vaccine because she also on day 11 and 12 had strange headaches that come with the vaccine. It was not until day 13 that everything left her. 13 days after she was 100 percent back to normal. She has had no issues since. The cardiologists and specialists can't say for sure it was the vaccine, but it was weird she has no ongoing symptoms. She feels like the vaccine had a lingering effect for just under 2 weeks. She was checked out by all the right doctors and she is happy to be vaccinated, so she is not complaining. She further stated that, after the second shot she thought wow this is easy until day 10. She doesn't remember when she had tiredness, it was the following 2 or 3 days. Usually, she likes to walk a lot and she was purposefully not doing a lot. She didn't want to get into trouble. There wasn't anything noticeable until day 10 between the breathlessness and headaches days 10, 11, and 12. She wasn't paying close attention to when the tiredness started because she was deliberately resting and taking it easy, it was just 2 or 3 days. She was shocked on day 10. The breathlessness was just one incident. 10 days after the shot, she had one episode on 26Feb2021. Once she laid down it was 5 or 10 minutes before she could talk with her husband. Then her doctor wanted her to go to the ER. She needed to make sure she was safe because she has a history of pulmonary embolism. Who knew at that point no one suspected the vaccine. It was not until she was totally cleared by the cardiologist and everything was gone 13 days after she thought it may be the vaccine. By the time she got to the hospital her oxygen was 100%. It was definitely intense. The headaches occurred after she got home from the hospital that Friday the 26th, and the 27th and 28th. For 2 solid days it was really unusual, unlike any headache she has every had before. It was not severe, she didn't need Advil. Her daughter reported something similar after the Moderna shot. After those 2 days, after day 13 it was all gone. She felt better, she was still tired after the episode and spent that whole weekend resting in bed. Then those headaches by the 13th day were gone. She was 100 percent better. She was suddenly better, it was really weird. The adverse events resulted in emergency room visit. The patient underwent lab tests and procedures which included blood test, when she went to the ER they did bloodwork and checked for blood clots and everything came back fine. The clinical outcome for the events was recovered for headache and tiredness on an unspecified date in 2021 and for breathlessness on 26Feb2021.  No follow up attempts are possible. No further information is expected.