This spontaneous case was reported by a consumer and describes the occurrence of ABDOMINAL DISTENSION (experienced being bloated and mentioned he was locked up), PAIN (He reported that he was sick and was hurting at the same time), ILLNESS (he experienced the same illness and symptoms again but they were a little worse this time.), ABDOMINAL DISCOMFORT (he experienced the same illness and symptoms again but they were a little worse this time.) and ILLNESS (sick and had to stay in bed all day) in a 65-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 006C21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below. Concurrent medical conditions included Fruit allergy (allergic to skin of apple, plums, cherries and artichokes) and Allergic skin reaction (allergic to skin). On 20-Apr-2021, the patient received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. In April 2021, the patient experienced ABDOMINAL DISTENSION (experienced being bloated and mentioned he was locked up), PAIN (He reported that he was sick and was hurting at the same time), ILLNESS (he experienced the same illness and symptoms again but they were a little worse this time.), ABDOMINAL DISCOMFORT (he experienced the same illness and symptoms again but they were a little worse this time.), ILLNESS (sick and had to stay in bed all day), MOBILITY DECREASED (sick and had to stay in bed all day), ABDOMINAL DISCOMFORT (bad stomach), ILL-DEFINED DISORDER (bathroom problems) and CONSTIPATION (it attacked his stomach and he became constipated for 3 days). On 20-Apr-2021, the patient experienced INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (2nd dose administered less than 25 days from 1st dose). On 21-Apr-2021, the patient experienced VACCINATION SITE PAIN (right arm hurt). In 2021, the patient experienced INFLUENZA LIKE ILLNESS (flu-like symptoms). On an unknown date, the patient experienced IMPAIRED WORK ABILITY (missed two days of work over it). The patient was treated with DOCUSATE SODIUM (STOOL SOFTENER) for Adverse event, at an unspecified dose and frequency. In April 2021, ILLNESS (sick and had to stay in bed all day), MOBILITY DECREASED (sick and had to stay in bed all day), ABDOMINAL DISCOMFORT (bad stomach) and ILL-DEFINED DISORDER (bathroom problems) had resolved. On 20-Apr-2021, INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (2nd dose administered less than 25 days from 1st dose) had resolved. At the time of the report, ABDOMINAL DISTENSION (experienced being bloated and mentioned he was locked up), PAIN (He reported that he was sick and was hurting at the same time), ILLNESS (he experienced the same illness and symptoms again but they were a little worse this time.), ABDOMINAL DISCOMFORT (he experienced the same illness and symptoms again but they were a little worse this time.), INFLUENZA LIKE ILLNESS (flu-like symptoms) and VACCINATION SITE PAIN (right arm hurt) outcome was unknown and CONSTIPATION (it attacked his stomach and he became constipated for 3 days) and IMPAIRED WORK ABILITY (missed two days of work over it) had resolved. DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In 2021, SARS-CoV-2 test: negative (Negative) Patient stated that he had taken a COVID-19 test one month later of experiencing flu-like symptoms and the results were negative. No concomitant information was reported. The patient was sick and had to stay in bed all day and had a bad stomach and bathroom problems and the events lasted approximately 12 to 15 hours and was fine the next day. On or around 27-Apr-2021, the patient had experienced illness and symptoms again, but they were a little worse this time. The patient mentioned that it attacked his stomach and he became constipated for 3 days. Furthermore, the patient experienced being bloated and mentioned was locked up. The patient was sick and was hurting at the same time and that missed two days of work over it. For treatment, the patient reported taking an over-the-counter stool softener and constipation medication but did not remember the name of the medicine. The patient experienced flu-like symptoms four months ago. The patient did take a COVID-19 test one month later and the results were negative. This case was linked to MOD-2022-442109 (Patient Link).