Did not sleep all night; Thought I was going to die; Had trouble breathing and was not able to walk very far because of shortness of breath; Heart rate increased; Blood pressure was very high; whole body turned red/From then on the face was red/cheeks were fiery red; I was like on fire, I couldn't cool it down; You could feel the heat in the body/I just kept drinking, I was too hot; Nausea; This spontaneous case was reported by a consumer and describes the occurrence of INSOMNIA (Did not sleep all night), FEELING ABNORMAL (Thought I was going to die), DYSPNOEA (Had trouble breathing and was not able to walk very far because of shortness of breath), HEART RATE INCREASED (Heart rate increased) and BLOOD PRESSURE INCREASED (Blood pressure was very high) in a 69-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 050E21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Hypersensitivity NOS (history of hypersensitivity reactions).    On 29-Sep-2021 at 9:30 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 29-Sep-2021, the patient experienced DYSPNOEA (Had trouble breathing and was not able to walk very far because of shortness of breath), HEART RATE INCREASED (Heart rate increased), BLOOD PRESSURE INCREASED (Blood pressure was very high), ERYTHEMA (whole body turned red/From then on the face was red/cheeks were fiery red), BURNING SENSATION (I was like on fire, I couldn't cool it down), FEELING HOT (You could feel the heat in the body/I just kept drinking, I was too hot) and NAUSEA (Nausea). On an unknown date, the patient experienced INSOMNIA (Did not sleep all night) and FEELING ABNORMAL (Thought I was going to die). The patient was treated with DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL A) from 29-Sep-2021 to 01-Oct-2021 at a dose of 2 tablets 50 mg. On 01-Oct-2021, BURNING SENSATION (I was like on fire, I couldn't cool it down) and FEELING HOT (You could feel the heat in the body/I just kept drinking, I was too hot) had resolved. At the time of the report, INSOMNIA (Did not sleep all night), FEELING ABNORMAL (Thought I was going to die), DYSPNOEA (Had trouble breathing and was not able to walk very far because of shortness of breath), HEART RATE INCREASED (Heart rate increased) and NAUSEA (Nausea) outcome was unknown and BLOOD PRESSURE INCREASED (Blood pressure was very high) and ERYTHEMA (whole body turned red/From then on the face was red/cheeks were fiery red) was resolving.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 29-Sep-2021, Blood pressure measurement: 190/110 (High) 190/110 mmHg at 5:30 and 178/98 (High) 178/98 at 9:00 pm. On 29-Sep-2021, Body temperature: 98.8 (normal) at 5:30 (degree F). On 29-Sep-2021, Heart rate: 120 (High) at 5:30 (beats per minute) and 100 (High) at 9:00 pm. On 30-Sep-2021, Blood pressure measurement: 169/98 (High) at 9 am and 117/74 (normal) at 11:00. On 30-Sep-2021, Body temperature: 97.6 (normal) at 9 am and 98.2 (normal) at 11:00. On 30-Sep-2021, Heart rate: 98 (High) at 9 am and 82 (normal) at 11:00. On an unknown date, Blood pressure measurement: 190/100 (High) blood pressure and was up 190/100  and it stayed that way for a good twelve hours. On an unknown date, Blood pressure systolic: abnormal (abnormal) less than 90 mmHg.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   No concomitant medications were reported. The patient did not take any treatment medications. She only drank water.  Reaction start date was reported as 29-Sep-2021 at 5:00 pm (reactions not specified).   Most recent FOLLOW-UP information incorporated above includes: On 07-Oct-2021: Non significant follow up appended. On 09-Oct-2021: Added medical history, lab data(body temperature, heart rate, blood pressure systolic and additional data on blood pressure); events were added (dyspnoea, heart rate increased, blood pressure increased, nausea).