This is a spontaneous report from a contactable nurse patient herself. A 44-year-old female patient received the second dose of BNT162B2 PFIZER-BIONTECH COVID-19 VACCINE, lot number EL1284, expiry date 30Apr202), via an unspecified route of administration (right deltoid), on 07 Jan 2021 11:00, at single dose, for covid-19 immunization. The patient's medical history was not reported. There were no concomitant medications. The patient previously received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, lot number EH9899, expiration date 31Mar2021) on 21Dec2020 for covid-19 immunization at 44-years-old. The patient reported that she got the shot. After the first dose received on 21Dec2020 she was fine and experienced no problems but; after the second dose received on 07Jan2021 she had a headache and she didn't go to work. The next day after the second shot she had fever and felt sick on 08Jan2021 and she wasn't going to call about that but then, less than a week later, on Jan2021 she had a stomach virus. She was not sure if it was a stomach virus or something related to the vaccine. She was not going to call but her dad said, "Well they won't know if you don't tell them so you could tell them and maybe see if other people have had that associated with it or not." So, she was going to see in the reporting information if other people had this issue or if it was just like a fluke GI bug that happened soon after she got the shot. She got the second shot on Thursday 07Jan2021 and then on Friday 08Jan2021 she stayed home with fever. On 09Jan2021 she felt fine and headache was recovered. Then the following Thursday 14Jan2021 she woke up at 1AM throwing up and having diarrhea. If it was a GI bug on 14Jan2021 it was the worst GI bug she ever had and right now she doesn't know but she went through the whole process of a GI bug. She couldn't eat anything for a day on Jan2021. She was barely able to drink water on 15Jan2021. She felt better that weekend and she was only eating soup and crackers, but she felt better. But then as soon as she added something else to her diet besides soup and crackers, she started feeling sick again, it did not go well. She was still only able to eat soup and crackers and feels very nauseated on Jan2021 all the time. She would like to know if this was a common reaction from the vaccine. That was on Sunday night 17Jan2021 that she started to feel sick again. On Monday she went to work but they only worked a half day and she was thankful because the only thing she wanted to do was come home and take a shower and go to bed. It had continued from there, still to the point that she said she would go get tested for COVID because she was exposed to a person that tested positive for the virus between her second dose and the first dose. A person very close to her tested positive and then she was around that person for week, it was her fiance. She still got the second shot and she was hopeful that she wouldn't get it; they were careful and wore a mask and everything. She informed that she got COVID-tested yesterday 19Jan2021 and she got this "app thing" but she was unsure about the accuracy of the (state name) health app and the app says her COVID test was negative but her work hasn't called her yet to confirm that it was negative so she was not sure if the app was legitimate. With the (state name) health app she was thinking it would be random they are sending texts to her phone so; they knew that she got a test. She also had an antibody test on an unspecified date after she received her vaccine (unknown which dose) and it was negative; she would like to know if this meant it was not effective. She stated she has never had a GI bug linger like this one. Her stomach was still gurgling in Jan2021, and she was still eating soup and crackers and it has been a week. As for her primary care, she hasn't seen them in a while, she can just skip that. She stated she started feeling sick with the GI bug symptoms on 14Jan2021. She got her second dose on 07Jan2021 and then, on 08Jan2021 was when she was sick with the fever. By that Saturday 09Jan2021 the fever was gone. Then on 14Jan2021 the GI bug symptoms developed. She says the diarrhea and vomiting have stopped; her stomach was just gurgling and she can't eat anything except soup and crackers. The vomiting and diarrhea started and ended on 14Jan2021, but she stopped eating and drinking; so, once everything came out that was the end of that. She just has not gotten back to normal. She says she would not say recovered with lasting effects because she does not think she has recovered at all. She would just say she still has not gotten back to normal. Vaccine Supplemental Form: Pfizer Suspect Vaccine and Vaccination Details. Time the Vaccination Was Given: 07Jan2021 at 11 AM. Anatomical Location of Administration of Pfizer vaccine considered as suspect: right deltoid. Vaccination Facility Type: Hospital as an employee. She remembers it was 4AM that she woke up with fever on 08Jan2021 she already had started taking Tylenol because she didn't want to get anything, and she didn't take any more after dinner on 07Jan2021. She thought she would be fine at that point, but she woke up at 4AM on 08Jan2021, sweating and not feeling good, just feeling sick. Vaccine Administered at Military Facility? No. History of all previous immunization with the Pfizer vaccine considered as suspect: First dose on 21Dec2020. She also has another question before she got the second shot. She asked the lady when she went to get it too. She stated her fiance got sick 29Dec2020 and apparently it came out later that he was exposed on 27Dec2020. She didn't see him until 30Dec2020. He started showing symptoms on 29Dec2020 and then on 30Dec2020, he got tested and she saw him, then he stayed with her because he lives with his elderly parents. He stayed there and they had talked about it before that he would come there to stay with her if he tested positive. She just thought she could handle it better than his parents and she already had the first vaccine but then she was around him 30Dec2020 then got her second dose on the 07Jan2021. Her question was, was there a problem that she was around someone that had COVID. The lady she asked said as long as she doesn't have symptoms, it was not contraindicated. She was told that if she has active symptoms, she should not get it. Since she was not having symptoms, the lady told her it was up to her and she could take it if she wanted it. She wanted to know could that be why she was having these issues because she was around someone with COVID. She further stated that if her COVID test truly does come back negative and her stomach does not straighten out, then she will have to go to the doctor. Also, she stated that they may want to test her for a GI bug or food poisoning, but nothing has been done at this time. She did not receive any other vaccines within 4 weeks prior to the COVID vaccine. The patient recovered from headache and fever on 09Jan2021; recovered from throwing up/vomiting and diarrhea on 14Jan2021; had not recovered from GI bug; and recovering from couldn't eat anything for a day and barely able to drink water. The outcomes of the other remaining events were unknown.