Felt hot; DIzzy; Sore arm; Diarrhea within hour after first dose; Panic attack within ten minutes of receiving the vaccine / border line panic attack.; Hours later, began to have tightness around the injection site; Hours later, began to have swelling around the injection site; Hours later, began to have tenderness around the injection site; Pain from back to butt muscle; Hot flashes within ten minutes of receiving the vaccine.; This spontaneous case was reported by a consumer and describes the occurrence of HOT FLUSH (Hot flashes within ten minutes of receiving the vaccine.), PANIC ATTACK (Panic attack within ten minutes of receiving the vaccine / border line panic attack.), VACCINATION SITE REACTION (Hours later, began to have tightness around the injection site), FEELING HOT (Felt hot) and DIARRHOEA (Diarrhea within hour after first dose) in a 26-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 027C21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Diarrhea and Panic attack. Concurrent medical conditions included Allergy to antibiotic (Allergic to Ancef) and Drug allergy (Seroquel). Concomitant products included MELATONIN and DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) for Sleeplessness.    On 20-May-2021 at 9:45 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 20-May-2021, the patient experienced HOT FLUSH (Hot flashes within ten minutes of receiving the vaccine.), VACCINATION SITE REACTION (Hours later, began to have tightness around the injection site), VACCINATION SITE PAIN (Hours later, began to have tenderness around the injection site), MYALGIA (Pain from back to butt muscle) and VACCINATION SITE SWELLING (Hours later, began to have swelling around the injection site). On 20-May-2021 at 9:45 AM, the patient experienced PANIC ATTACK (Panic attack within ten minutes of receiving the vaccine / border line panic attack.) and MYALGIA (Sore arm). 20-May-2021 at 9:45 AM, the patient experienced DIARRHOEA (Diarrhea within hour after first dose). On 24-May-2021, the patient experienced DIZZINESS (DIzzy). On an unknown date, the patient experienced FEELING HOT (Felt hot). The patient was treated with ACETYLSALICYLIC ACID (ASPIRIN (E.C.)) for Pain, at an unspecified dose and frequency. On 21-May-2021, VACCINATION SITE REACTION (Hours later, began to have tightness around the injection site), VACCINATION SITE PAIN (Hours later, began to have tenderness around the injection site) and VACCINATION SITE SWELLING (Hours later, began to have swelling around the injection site) had resolved. On 22-May-2021, HOT FLUSH (Hot flashes within ten minutes of receiving the vaccine.), PANIC ATTACK (Panic attack within ten minutes of receiving the vaccine / border line panic attack.), DIARRHOEA (Diarrhea within hour after first dose) and MYALGIA (Sore arm) had resolved. At the time of the report, FEELING HOT (Felt hot) and DIZZINESS (DIzzy) outcome was unknown and MYALGIA (Pain from back to butt muscle) had resolved.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       The patient received the first dose of the Moderna vaccine and began to have a panic attack and hot flashes within ten minutes of receiving the vaccine. The patient hours later, began to have tenderness around the injection site, tightness, swelling, which lasted until the next day. The patient also experienced diarrhea within an hour of receiving the vaccine and experienced pain from the back of the leg to the butt area, in the muscle and took aspirin for the pain, which went away. On 24-May-2021, the felt dizzy while working outside in the yard.  On 24-Jun-2021, the patient described that that they almost had an immediate reaction of a borderline panic attack after first dose that lasted ten minutes and removed their mask to breathe easier. Later that day or the next one, the patient had a sore arm and diarrhea one time. The patient also reported that they did some yard work and got dizzy and felt hot.   Reportedly, the patient drank a small amount of liquor, ate, and drank some non-alcoholic fluids. And also removed themselves from sun and rested.   This case was linked to MOD-2021-229964 (Patient Link).   Most recent FOLLOW-UP information incorporated above includes: On 24-Jun-2021: Follow up information was received on 24-Jun-2021. Updated patient demographics. Updated relevant history of the patient. Added Vaccination facility information. Added New event sore arm. Updated the outcome and the stop dates of the events panic attack, hot flash and diarrhea from unknown to recovered. On 24-Jun-2021: Follow up information received on 24-Jun-2021 contains no new information.