Blood clot in lungs and leg; Trouble breathing/Shortness of breath, but not as bad; didn't feel right; Chest tightness; Slightly ill; Sore arm, in left arm where the shot was; Slightly tired; This is a spontaneous report from a contactable consumer. An 81-year-old female patient received the second dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), via an unspecified route of administration, administered in the left arm on 10Feb2021 (Batch/Lot Number: EN6201) as SINGLE DOSE for covid-19 immunization.  Medical history included Type 2 Diabetes from 2004 and ongoing, High Blood Pressure from 2000 and ongoing (reporter stated she was 81; it's not very high, usually when she goes to the doctor). Concomitant medications not specified but reporter mentioned that everything she has been on she has been on long time; she takes blood pressure medication because sometimes it is high. She has not had started any new medication prior to starting vaccines or during both vaccines. The patient previously received flu shot (September). The patient received her first vaccine dose of bnt162b2 (Lot # EL9262, Expiry date UNKNOWN), on 20Jan2021, at 1:30-1:45, in the left arm and experienced sore arm and slightly tired. The reporter stated that after her second vaccine on 10Feb2021, she had a sore arm, (left, where shot was) and was slightly tired from 10Feb2021 until 12Feb2021. She confirmed she noticed this started the same day, 10Feb2021. On 31Mar2021, she felt slightly ill and had some slightly trouble breathing. She saw her doctor who did some tests. The next day 01Apr2021, her tests came back and the doctor told her to go to the hospital. While in the emergency room she had a CT of the lungs that showed blood clots in both lungs. She was admitted to the hospital where on 02Apr2021 they did a ultrasound of her legs. She was told she had blood clots in her right leg. She stated she had no symptoms of blood clots in her legs like redness, sore, swelling, or hot. She was asked if she had fallen suddenly, had an accident, or was sitting for a long time, traveled  a long distances. On 02Apr2021 she had a Echocardiogram and was told her heart was ok. Caller stated she was given Lovenox shots in the hospital. She did not have Lot # or Expiry date on the Lovenox. She stated on 02Apr2021 after having two Lovenox shots that day, she met with a Vascular Surgeon who started her on Eliquis that evening. She stated she started taking Eliquis that evening. She stated she took 2 tablets, twice a day, for a week. Now she takes one tablet, twice a day, ongoing. The Eliquis tablet says 5mg. She stated she was discharged on 03Apr2021, that evening. Patient went back to the emergency room on 10Apr2021 after speaking with a nurse at (university name withheld) because she had tightness in the chest but the shortness of breath, her breathing was not as bad. She just didn't felt right. She stated she was not admitted. Patient stated she saw a NP (name withheld) with (university name withheld) Pulmonary the day of 31Mar2021. When discussing the tests performed that day, Chest X-ray, D-Dimer, and Pro INT, CH asked caller the results from them. She did not provide results, just stated she had looked up her results in "EPIC mychart" while getting the result information from the office. Where she was instructed to go to the hospital. She went to the  Clinic of the Vascular Surgeon at (Hospital withheld) on Wednesday 14Apr2021 and was feeling better. Her second appointment with them will be in July. Where they will do another ultrasound of her legs and talk about the medication. She has an appointment with her primary on 19Apr2021. The outcome of events Trouble breathing (recovered on 14Apr2021), Shortness of breath, but not as bad (recovered on 12Apr2021), Sore arm, in left arm where the shot was (recovered on 12Feb2021), Slightly tired (recovered on 12Feb2021) Chest tightness (recovered on 12Apr2021), and didn't feel right was recovered. The outcome of event Blood clot in lungs and leg was unknown.