overreaction to the vaccine; I feel like killing myself half the time; vision problems; became lactose intolerant; can not take any kind of food like milk, cream, ice cream, garlic, chocolate, nothing spicy at all, not even pepper; sinus problem; electric shocks; muscle twitches; severe acid reflux; pressure in head and ears; weakness; migraines; muscle weakness; diarrhea getting worse; diarrhea; muscle aches; extreme exhaustion; This spontaneous case was reported by a patient and describes the occurrence of GASTROOESOPHAGEAL REFLUX DISEASE (severe acid reflux), HEAD DISCOMFORT (pressure in head and ears), ASTHENIA (weakness), MIGRAINE (migraines) and MUSCULAR WEAKNESS (muscle weakness) in a 63-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 933904, 047/b21a$ and 003b84h) for COVID-19 prophylaxis. The occurrence of additional non-serious events is detailed below.     Previously administered products included for Product used for unknown indication: flu vaccine (flu vaccine in Sep last year) in September 2021. Past adverse reactions to the above products included No adverse event with flu vaccine. Concurrent medical conditions included Allergy (he does now), Type 2 diabetes mellitus (he was border line type 2 diabetic) and Thyroid disorder (thyroid was irradiated when he was in his 20s). Concomitant products included GABAPENTIN for Neuropathy.   On 21-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 18-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 13-Nov-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 13-Nov-2021, the patient experienced GASTROOESOPHAGEAL REFLUX DISEASE (severe acid reflux), HEAD DISCOMFORT (pressure in head and ears), ASTHENIA (weakness), MIGRAINE (migraines), MUSCULAR WEAKNESS (muscle weakness), LACTOSE INTOLERANCE (became lactose intolerant), HYPOPHAGIA (can not take any kind of food like milk, cream, ice cream, garlic, chocolate, nothing spicy at all, not even pepper), SINUS DISORDER (sinus problem), ELECTRIC SHOCK SENSATION (electric shocks), MUSCLE TWITCHING (muscle twitches), CONDITION AGGRAVATED (diarrhea getting worse), DIARRHOEA (diarrhea), MYALGIA (muscle aches) and FATIGUE (extreme exhaustion). On 13-Nov-2022, the patient experienced VISUAL IMPAIRMENT (vision problems). On an unknown date, the patient experienced IMMUNISATION REACTION (overreaction to the vaccine) and FEELING ABNORMAL (I feel like killing myself half the time). At the time of the report, GASTROOESOPHAGEAL REFLUX DISEASE (severe acid reflux), HEAD DISCOMFORT (pressure in head and ears), ASTHENIA (weakness), MIGRAINE (migraines), MUSCULAR WEAKNESS (muscle weakness), VISUAL IMPAIRMENT (vision problems), LACTOSE INTOLERANCE (became lactose intolerant), HYPOPHAGIA (can not take any kind of food like milk, cream, ice cream, garlic, chocolate, nothing spicy at all, not even pepper), SINUS DISORDER (sinus problem), ELECTRIC SHOCK SENSATION (electric shocks), MUSCLE TWITCHING (muscle twitches), CONDITION AGGRAVATED (diarrhea getting worse), DIARRHOEA (diarrhea), MYALGIA (muscle aches) and FATIGUE (extreme exhaustion) had not resolved and IMMUNISATION REACTION (overreaction to the vaccine) and FEELING ABNORMAL (I feel like killing myself half the time) outcome was unknown.            Patient was used synthetic thyroid medication as a concomitant medication. Patient did not receive any other booster. Patient not had covid-19 test. The reported events which started right away and still has them today for a year almost every day.  Patient went to the doctor and he was told there was no treatment -his HCP was an immunologist- he told the patient his immune system had an overreaction to the vaccine.   This case was linked to MOD-2022-672494, MOD-2021-161677 (Patient Link).