Feet started to hurt, she couldn't put weight on her feet and they were turning black; Legs and feet were hurting so bad; Legs and feet were hurting so bad; She couldn't put weight on her feet and they were turning black; She couldn't put weight on her feet and they were turning black; Legs and feet were starting to swell; Legs and feet were starting to swell; Her hands were black; Hands were starting to swell up; This is a spontaneous report from a contactable consumer (the patient).  A 52-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), dose 1 via an unspecified route of administration, administered in left arm on 07Apr2021 at 17:00 (Lot Number: EW0151), at the age of 52 years, as a single dose for COVID-19 immunisation.  Medical history included crohn's disease (Crohn's disease  Diagnosed at age 25), thyroid disorder (thyroid  Diagnosed in her 30's). Concomitant medication taken within two weeks of vaccination included vitamin b12,  zinc, potassium, tocopheryl acetate (E-VITAMIN), cyanocobalamin (B12), and vitamin b complex (VITAMIN B), all taken for crohn's disease; levothyroxine taken for thyroid disorder, dicycloverine (DICYCLOMINE) taken for abdominal pain, and omeprazole (PRILOSEC). The patient experienced feet started to hurt, she couldn't put weight on her feet and they were turning black on 10Apr2021, hands were starting to swell up on 07Apr2021, her hands were black on 08Apr2021, legs and feet were starting to swell on 09Apr2021, legs and feet were hurting so bad on 10Apr2021. She couldn't put weight on her feet and they were turning black on 10Apr2021. The patient was hospitalized for feet started to hurt, she couldn't put weight on her feet and they were turning black on 10Apr2021. The patient received treatment.  The verbatim clinical course was reporter as follows: The patient is calling about the Pfizer covid vaccine. The  patient had the first dose on 07Apr2021. By 10Apr2021 the patient was in the hospital, they thought at first the patient had blood clots. The patient is still not back to work yet. They keep having the patient have tests done. The patients hands and feet turned black and were swollen up after she received the vaccine. The patient got the vaccine at 5:00pm on 07Apr2021, and that night her hands were starting to swell up. The patient thought it was because of her Crohns. Then the vessels in the patients fingers started busting, is what it looked like, and her hands were black and she couldn't hardly move them on 08Apr2021. Then the next day, 09Apr2021, the patient noticed her legs and feet were starting to swell. The next day, 10Apr2021, the patient was starting to look down and her legs and feet were hurting so bad she had to sit down when she was vacuuming. The patient thought she stepped on the vacuum cord when her feet started to hurt, she couldn't put weight on her feet and they were turning black. The patient propped her legs up and then soaked them in Epson salt and hot water and that made them worse. The patient went to healthcare facility on10Apr2021 and they said it looks like she has blood clots so they sent her to emergency room. In the emergency room they admitted the patient and did test after test. They gave the patient morphine for the pain that was shooting down her legs, it felt like needles were sticking in her legs. The patient was out of it for a couple of days because when she got that morphine she didn't know she was in the world. Morphine- unknown lot, NDC , and expiration dates for doses involved. They gave the patient gabapentin and that helped some. They were giving the patient so much Gabapentin during the day she couldn't function so they cut it back to giving it to at night. The patient was taking the Gabapentin 3 times a day, at the time, and she couldn't function on it. Gabapentin- unknown lot, NDC, and expiration date for the doses given in the hospital. The night of 07Apr2021 the patient couldn't really move her fingers and took it easy. 09Apr2021 is when this started in her feet. Then on 10Apr2021 the patient went to the hospital because the pain was so bad. By the end of the day the patient is still swollen. One leg was swollen more than the other but they are not black and blue like they were and they said its from nerve damage. The patient was so drugged up in the hospital, she didn't know her name. The patient has an EMG test scheduled on 04Jun2021. The patient was scheduled for the second shot on 28Apr2021 and didn't get it because she was told not to by her doctor and the hospital doctors. Test in the hospital was as follows: 10Apr2021: US venous leg bilateral, chest x-ray with one vw portable, CBC with differential, CMP, d-dimer, EFR, INR, active particle thromboplastin time, EKG. On 11Apr2021: TSH, TR3, CK, Magnesium, sars-cov-2antigenfia with reflux to covid rapid test- negative, aorta angiogram runoff with contrast, x-ray of the foot lateral and oblique. On 12Apr2021: Magnesium, CBC, BMP, ANA, ANA titer. On 13Apr2021: CBC,BMP, and a urinalysis with reflex. On 19May2021: MRI lumbar and spine with and without contrast was ordered by the neurologist. The patient reported that she thought that the hospital reported this so she went back to her paperwork and called today to report this event. The clinical outcome of She couldn't put weight on her feet and they were turning black, Legs and feet were hurting so bad, and Legs and feet were starting to swell was unknown. The patient was recovering from the remaining events.  Additional information has been requested.