Tender in arm pit of left arm in which it felt like a pulled muscle; Really sore lymph node; Swollen (lymph node); Pull muscle on left foot/ jolt of pain/ excruciating pain; bottom of foot felt really painful to walk/ shooting pain left foot; really painful to walk; Mild flu; having fibromyalgia and the symptoms she felt was like a flare; Feeling fatigue/ feeling incredibly tired; Achy; This spontaneous case was reported by a consumer and describes the occurrence of FIBROMYALGIA (having fibromyalgia and the symptoms she felt was like a flare), INFLUENZA (Mild flu), GAIT DISTURBANCE (really painful to walk), MUSCLE STRAIN (Pull muscle on left foot/ jolt of pain/ excruciating pain) and PAIN IN EXTREMITY (bottom of foot felt really painful to walk/ shooting pain left foot) in a 58-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 004M20A and 011L20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Drug allergy (Allergic to sulpha), Allergy (Allergic to surgical cotton guaze), Penicillin allergy and Fibromyalgia. Concomitant products included DIPHENHYDRAMINE, ZOLPIDEM TARTRATE (AMBIEN), FISH OIL, PROBIOTICS NOS and CURCUMA LONGA RHIZOME (TURMERIC CURCUMIN [CURCUMA LONGA RHIZOME]) for an unknown indication.   On 22-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 19-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 2 dosage form. On 19-Feb-2021, the patient experienced FIBROMYALGIA (having fibromyalgia and the symptoms she felt was like a flare), MYALGIA (Achy) and FATIGUE (Feeling fatigue/ feeling incredibly tired). On 20-Feb-2021, the patient experienced INFLUENZA (Mild flu). On 24-Feb-2021, the patient experienced GAIT DISTURBANCE (really painful to walk). 24-Feb-2021, the patient experienced PAIN IN EXTREMITY (bottom of foot felt really painful to walk/ shooting pain left foot). On 08-Mar-2021, the patient experienced MUSCLE STRAIN (Pull muscle on left foot/ jolt of pain/ excruciating pain). On 09-Mar-2021, the patient experienced TENDERNESS (Tender in arm pit of left arm in which it felt like a pulled muscle), LYMPH NODE PAIN (Really sore lymph node) and LYMPHADENOPATHY (Swollen (lymph node)). At the time of the report, FIBROMYALGIA (having fibromyalgia and the symptoms she felt was like a flare), INFLUENZA (Mild flu), GAIT DISTURBANCE (really painful to walk), MUSCLE STRAIN (Pull muscle on left foot/ jolt of pain/ excruciating pain), PAIN IN EXTREMITY (bottom of foot felt really painful to walk/ shooting pain left foot), TENDERNESS (Tender in arm pit of left arm in which it felt like a pulled muscle), LYMPH NODE PAIN (Really sore lymph node), MYALGIA (Achy), LYMPHADENOPATHY (Swollen (lymph node)) and FATIGUE (Feeling fatigue/ feeling incredibly tired) outcome was unknown.            No treatment medication was reported Action taken with mRNA-1273 in response to the event was not applicable   This case was linked to MOD21-050623, US-MODERNATX, INC.-MOD-2021-041005 (E2B Linked Report).; Sender's Comments:  MOD21-050623: US-MODERNATX, INC.-MOD-2021-041005: