lost control of their bowels for a bit; metallic taste; felt lost in the world; incredible fatigued; severe migraine for the better part of 2 days; pain kept ramping up/terrific pain; felt like having a sledgehammer to the brain/felt lost in the world; vertigo; kept up all night because of the pain; felt like they had lost their center of gravity; lost their appetite; This spontaneous case was reported by a consumer and describes the occurrence of MIGRAINE (severe migraine for the better part of 2 days), PAIN (pain kept ramping up/terrific pain), HEADACHE (felt like having a sledgehammer to the brain/felt lost in the world), VERTIGO (vertigo) and INSOMNIA (kept up all night because of the pain) in a 60-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 034F21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Previously administered products included for COVID-19 vaccination: Jansen Vaccine (1st dose and Lot number :1802072;received on left arm) on 07-Mar-2021. Past adverse reactions to the above products included Migraine with Jansen Vaccine. Concurrent medical conditions included Chronic migraine since 01-Jan-2016, Meniere's disease (disease) since 06-Jan-1997, Osteoporosis, Perennial allergy, Autoimmune disorder NOS, Trigeminal neuralgia since 15-Jan-2016, Fibromyalgia since 15-May-1998, Post herpetic neuralgia since 15-Oct-2015, Drug allergy (Robaxin), Allergy to antibiotic (Blaxin), Drug allergy (Gulfenesin), Drug allergy (Topamax), Drug allergy (Nortriptyline) and Drug allergy (Oxcarbazepine). Concomitant products included CITALOPRAM from 01-Jan-2015 to an unknown date for Anxiety, PREGABALIN (LYRICA) from 15-Jan-2016 to an unknown date for Chronic migraine, VITAMIN B [VITAMIN B NOS] from 10-May-2017 to an unknown date for Deficiency of B-complex components, CALCIUM from 15-Apr-2021 to an unknown date for Osteoporosis, CETIRIZINE HYDROCHLORIDE (ZYRTEC [CETIRIZINE HYDROCHLORIDE]) for Perennial allergy, VITAMIN D NOS from 17-Dec-2015 to an unknown date for an unknown indication.    On 08-Nov-2021 at 10:00 AM, the patient received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 08-Nov-2021, the patient experienced MIGRAINE (severe migraine for the better part of 2 days), PAIN (pain kept ramping up/terrific pain), HEADACHE (felt like having a sledgehammer to the brain/felt lost in the world), VERTIGO (vertigo), INSOMNIA (kept up all night because of the pain), BALANCE DISORDER (felt like they had lost their center of gravity), DECREASED APPETITE (lost their appetite) and FATIGUE (incredible fatigued). 08-Nov-2021, the patient experienced DYSGEUSIA (metallic taste) and FEELING ABNORMAL (felt lost in the world). On 09-Nov-2021, the patient experienced ABDOMINAL DISCOMFORT (lost control of their bowels for a bit). On 09-Nov-2021, ABDOMINAL DISCOMFORT (lost control of their bowels for a bit) and DYSGEUSIA (metallic taste) had resolved. On 10-Nov-2021, MIGRAINE (severe migraine for the better part of 2 days), PAIN (pain kept ramping up/terrific pain), HEADACHE (felt like having a sledgehammer to the brain/felt lost in the world), VERTIGO (vertigo), INSOMNIA (kept up all night because of the pain), BALANCE DISORDER (felt like they had lost their center of gravity), DECREASED APPETITE (lost their appetite), FEELING ABNORMAL (felt lost in the world) and FATIGUE (incredible fatigued) had resolved.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   Treatment information was not provided. Patient experienced adverse event of severe migraine for the better part of 2 days and  felt like having a sledgehammer to the brain  having  an onset  3-4 hours after the shot of booster dose  for both the event.   Most recent FOLLOW-UP information incorporated above includes: On 17-Nov-2021: Significant Follow-up received on 17-Nov-2021 contains  Allergies to medications, medical history added, patient demographic details added, dosage text has been updated