Upset stomach; Went twice to bathroom; bowel issues; Sinus infection; Been tired before and now I'm tired too; fever; Swollen glands; vision has been affected; Threw up; Constipation; Constant vertigo; Diarrhea; Diarrhea,yellow and burned,stool has been yellow since the vaccine; This spontaneous case was reported by a consumer and describes the occurrence of DIARRHOEA (Diarrhea), ABDOMINAL DISCOMFORT (Upset stomach), ABDOMINAL DISCOMFORT (Went twice to bathroom), ABDOMINAL DISCOMFORT (bowel issues) and CONSTIPATION (Constipation) in a 51-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 045A21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included COVID-19 on 10-Aug-2020, Migraine, Neuralgia trigeminal in 2018 and Neuropathy peripheral. Concurrent medical conditions included Drug allergy (Allergies: Codeine), Drug allergy (Allergies: Keflex), Anxiety depression since 2014, Allergy to chemicals (Allergies: zinc), Allergy to metals (Allergies: copper), Allergy to insect sting (Allergies: fire ants), Pain (Chronic back and neck pain spa) since 2014 and Allergy to chemicals (Allergies: nickel). Concomitant products included CLONAZEPAM from 2014 to an unknown date and BUPROPION HYDROCHLORIDE (BUPROPION [BUPROPION HYDROCHLORIDE]) for Anxiety depression, PARACETAMOL (TYLENOL) for Headache, CYCLOBENZAPRINE from 2012 to an unknown date for Muscle spasms.    On 09-Apr-2021 at 9:45 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 10-Apr-2021, the patient experienced DIARRHOEA (Diarrhea,yellow and burned,stool has been yellow since the vaccine). On 16-Apr-2021, the patient experienced DIARRHOEA (Diarrhea). On 22-Apr-2021, the patient experienced VERTIGO (Constant vertigo). On 29-Apr-2021, the patient experienced CONSTIPATION (Constipation) and VOMITING (Threw up). On 06-May-2021, the patient experienced VISUAL IMPAIRMENT (vision has been affected). On an unknown date, the patient experienced ABDOMINAL DISCOMFORT (Upset stomach), ABDOMINAL DISCOMFORT (Went twice to bathroom), ABDOMINAL DISCOMFORT (bowel issues), SINUSITIS (Sinus infection), FATIGUE (Been tired before and now I'm tired too), PYREXIA (fever) and LYMPHADENOPATHY (Swollen glands). The patient was treated with MECLIZINE [MECLOZINE] for Nausea, at a dose of 1 dosage form once a day; PREDNISONE at a dose of UNK dosage form; HYDROCHLOROTHIAZIDE ongoing since an unknown date at a dose of 12.5 mg; AZITHROMYCIN at a dose of 10 mg; DOCUSATE SODIUM (STOOL SOFTENER) at a dose of 1 dosage form and PROCHLORPERAZINE MALEATE (ANTI-NAUSEA [PROCHLORPERAZINE MALEATE]) at a dose of UNK dosage form. At the time of the report, DIARRHOEA (Diarrhea), ABDOMINAL DISCOMFORT (Upset stomach), ABDOMINAL DISCOMFORT (Went twice to bathroom), ABDOMINAL DISCOMFORT (bowel issues), DIARRHOEA (Diarrhea,yellow and burned,stool has been yellow since the vaccine), VERTIGO (Constant vertigo), VISUAL IMPAIRMENT (vision has been affected), SINUSITIS (Sinus infection), FATIGUE (Been tired before and now I'm tired too), VOMITING (Threw up) and LYMPHADENOPATHY (Swollen glands) outcome was unknown and CONSTIPATION (Constipation) and PYREXIA (fever) had not resolved. Not Provided    DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 15-Apr-2021, Pyrexia: 100.1 (Inconclusive) Fever. On an unknown date, Blood pressure measurement: elevated (High) Elevated blood pressure. On an unknown date, Magnetic resonance imaging: abnormal (abnormal) MRI shows slight mastoid effusion rt ear. On an unknown date, Ultrasound Doppler: inconclusive (Inconclusive) Inconclusive.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       Most recent FOLLOW-UP information incorporated above includes: On 06-May-2021: Concomitant product and event information was updated. On 24-May-2021: Patient demographics, historical conditions, lab details, suspect, concomitant, treatment information and event information were updated.