3 weeks later, she threw up a blood clot; that caused a stroke in her left eye; She also had huge red rash all over her chest and neck area after 3 weeks.; Next five days, she was tired/She felt exhausted; She was nauseous; She had headache; received her 1st dose in March 2021; This spontaneous case was reported by a consumer and describes the occurrence of HAEMATEMESIS (3 weeks later, she threw up a blood clot) and EYE DISORDER (that caused a stroke in her left eye) in a 55-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concomitant products included HYDROCHLOROTHIAZIDE and ATORVASTATIN for an unknown indication.    In March 2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On an unknown date, the patient experienced HAEMATEMESIS (3 weeks later, she threw up a blood clot) (seriousness criterion medically significant), EYE DISORDER (that caused a stroke in her left eye) (seriousness criterion medically significant), RASH ERYTHEMATOUS (She also had huge red rash all over her chest and neck area after 3 weeks.), FATIGUE (Next five days, she was tired/She felt exhausted), NAUSEA (She was nauseous), HEADACHE (She had headache) and PRODUCT DOSE OMISSION ISSUE (received her 1st dose in March 2021). At the time of the report, HAEMATEMESIS (3 weeks later, she threw up a blood clot), EYE DISORDER (that caused a stroke in her left eye), RASH ERYTHEMATOUS (She also had huge red rash all over her chest and neck area after 3 weeks.), FATIGUE (Next five days, she was tired/She felt exhausted), NAUSEA (She was nauseous), HEADACHE (She had headache) and PRODUCT DOSE OMISSION ISSUE (received her 1st dose in March 2021) outcome was unknown.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.       Patient received her 1st dose in March 2021.  weeks later, she threw up a blood clot that caused a stroke in her left eye. She also had huge red rash all over her chest and neck area after 3 weeks. Next five days, she was tired. She was nauseous. She had headache. She felt exhausted.  Patient was treated with BP medicine, Blood thinner and Anxiety medicine.  Company comment: Based on the current available information and temporal association between the use of the product, and the start date of the events, a causal relationship cannot be excluded Concomitant  HYDROCHLOROTHIAZIDE  could be a contributory risk factor for the events of Hematemesis and Headache ; also Concomitant ATORVASTATIN could be a contributory risk factor for the events of Hematemesis, Nausea and Fatigue.Further information has been requested.; Sender's Comments: Based on the current available information and temporal association between the use of the product, and the start date of the events, a causal relationship cannot be excluded Concomitant  HYDROCHLOROTHIAZIDE  could be a contributory risk factor for the events of Hematemesis and Headache ; also Concomitant ATORVASTATIN could be a contributory risk factor for the events of Hematemesis, Nausea and Fatigue.Further information has been requested.