Trouble of pain in her right side which was diagnosed as blood clot near the portal vein to her liver; blood clot appeared/The only blood clot found was one near the portal vein to her liver; This is a spontaneous report from a contactable consumer (patient). A 56-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot number: EWO176, Expiration date: Aug2021) via an unspecified route of administration, in left arm on 10May2021 at 13:00 (at the age of 56-year-old) as dose 2, single for COVID-19 immunization and influenza vaccine (FLU, Lot number was not reported) on an unspecified date for immunization. The patient medical history included menopause, patient mentioned she was probably considered overweight. Concomitant medication(s) included estradiol (ESTROGEN) taken for menopause treatment, start and stop date were not reported; drospirenone, ethinylestradiol (VESTURA) taken for hormone replacement therapy from an unspecified start date and ongoing; quetiapine; levothyroxine sodium (SYNTHROID); bupropion hydrochloride (WELLBUTRIN), all taken for an unspecified indication from an unspecified start date and ongoing. The patient previously received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot number: ER8731, Expiration date: Jul2021) via an unspecified route of administration, in left arm on 19Apr2021 at 13:00 (at the age of 56-year-old) as dose 1, single for COVID-19 immunization. The patient had the dose of the Pfizer Covid-19 vaccine in May2021 and the blood clot appeared in Sep2021. On 11Sep2021, she was admitted with trouble of pain in her right side which was diagnosed as blood clot near the portal vein to her liver. They did a blood test and her clotting factor was high with result of 104, and the normal is 29-39, date unknown. They were scheduling to check for more blood clots. They didn't find any other blood clots on any other scans done in the hospital during 11Sep2021-12Sep2021 admission. The only blood clot found was one near the portal vein to her liver. Patient reported that she recently received a flu shot and had taken estrogen therapy/HRT for "ten years or more" for menopause treatment. Caller asked if anyone had reported blood clotting with the vaccine and if there was any information from those reports of the onset of the clots. The patient shared additional studies she found regarding blood clots being linked to Pfizer covid 19 vaccine. It looks like the Pfizer vaccine does create a small risk of clots, so in her case it might not be her hormone therapy causing the clotting. The doctors may be thinking that taking hormone therapy is not a good idea; it's very possible or at least possible it was just from getting the vaccine and it is listed as a side effect on the Pfizer vaccine and a J&J vaccine there is a small risk of blood clots; mostly in women; this is problem, with the vaccine in women, that women may have increased risk of side effects. there was a death, they died of myocarditis; they're linking her death to the vaccine it looks like. Advised caller that myocarditis does have a risk too within the Pfizer Covid-19 Vaccine which is listed in the prescribing information; she encouraged patient to follow-up with her healthcare provider. Caller then goes on to explain that there was probably a difference between women and men. Women may be more vulnerable to the vaccine but may have fallen into a very small category of the risk category.  that person died of myocarditis and they definitely linked it to the vaccine; caller does not know for sure but there seems to be a link between the two. There has been a recent increase in reporting these events. The article is a fact checked article; not necessarily relevant, obviously everybody has to get the vaccine, but in this case there is more frequently the risk shortly after the second dose of vaccine; generally effects are extremely mild with patients recovering in a short time. There is a link between myocarditis and the Pfizer jab. Agent advised caller again that they have had some reports of myocarditis and advised caller to address these concerns with her healthcare provider. Caller continued that rather than suggesting it may have been the hormone therapy, that with the vaccine she may have fallen into a small group. She doesn't get vaccines, she doesn't usually even get flu shots and they're saying that there may be additional risk so they're saying it could be 1700 cases of stroke among a huge population millions of people with that risk of stroke so a very small risk. There is slightly increased risk of appendicitis with Pfizer vaccine of 5 patients of 100000. This is possible; so this is something the healthcare provider needed to also put on the table, but the only thing they attacked was her estrogen hormone therapy other than that, but there in (name withheld) everyone is anti something. There is information regarding thromboembolism, thrombocytopenia which suggested it is with the Pfizer. There is a study and on (link withheld). Science daily does not have any information on whether there's side effects she wonders about information of a tiny group of women or young men who for some bizarre reason seem to be vulnerable to this particular vaccine. Caller said studied noted that blood clots from the vaccine could be found in 4 out of 1 million people and she said the possibility of developing a blood clot seems rare and that women's bodies respond differently than men to the vaccine. She will check back with healthcare provider, if there have been reported cases, she can go back to her healthcare provider who is just attacking her hormone therapy and say look there's a possibility this is something else. The outcome of the events was unknown.  Follow-up attempts are completed. No further information is expected..