Dry mouth; Throat was burning/ burning sensation in her throat; Couldn't eat; Drank one water and felt like she needed more so she drank 5 bottles of water; She couldn't really walk; Felt very achy/ lot of pain; Felt out of it/ feeling horrible/ feeling yucky; Weak; Couldn't eat anything, didn't have an appetite; Dizzy/ dizziness; Vomited; Headache; This is a spontaneous report from a contactable consumer (patient). A 55-years-old female patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection, batch/lot number: ER8735, expiry date: unknown) via an unspecified route of administration on 07May2021 at 11:15 (at the age of 55-years-old) in upper right arm as DOSE 1, SINGLE FOR COVID-19 immunization. The patient's medical history (including any illness at time of vaccination) and concomitant medications were not reported. Historical vaccine included prior vaccination of flu shot in fall. History of all previous immunization with the Pfizer vaccine considered as suspect, additional vaccines administered on same date of the Pfizer suspect, adverse events following prior vaccinations, family medical history relevant to adverse events were reported as none. The patient did not receive any other vaccinations within four weeks prior to the first administration date of the suspect vaccine. No investigation assessment was reported. The patient reported that she received the vaccine in the morning on 07May2021 at 11:15 and did not feel anything at all and then she sat there for 20 minutes at vaccine center, they said to wait to see if there was a reaction. She was fine so she went home and did her usual activities. She went to the store, she was at work then and got seafood at 18:00. She went home at 22:00, she eat some shrimp and fish, seafood-like stuff, went to bed. She felt fine immediately after eating seafood, then overnight at like 03:00 on 08May2021, she woke up and felt out of it, felt horrible, like very achy, weak, dry mouth, throat was burning, lot of pain and just dizzy. She nudged her husband and told him to get her water and he got her water, drank one and felt like she needed more so she drank maybe 5 bottles. She woke up a little bit later, she could not really walk because she felt so weak, so he had to help her to the bathroom and that's when she vomited. She went back to sleep and the next day, she could not eat anything, felt bad and didn't have an appetite. She had early morning vomiting, then she woke up 08May2021 and it was all that day, she did not feel like eating and had headache then went to bed. She went to bed feeling yucky and then when she woke up on 09May2021, she felt normal again. She did not require emergency room and physician office visit. She was just wondering if those symptoms could be from the food or if it could have been from the vaccine as it just happened the same day or was a coincidence. She does not think she needs to worry about getting the doctor involved, she just had that one episode and felt fine. Relevant tests were reported as none. The patient was scheduled for second dose on 28May2021. The outcome of all the events was resolved on 09May2021.  Information on lot/batch number was available. Additional information has been requested.