black and blue 2" under the injection site; bad migraines; arm is still hurting but now only in one spot, not the whole arm like before; The burning started going on and off again. It was hurting a lot a night. The burning is coming; It stopped burning constantly on 04Apr2021 but if you touched the black and blue marks the; I had a black and blue L shaped mark about an inch in each direction and about 3 inches below; My entire left arm up into the back of my neck was burning like it was on fire like someone was; My arm was sore. My arm was really hot in spot were I got the shot. It did feel achy and heavy; My arm was sore. My arm was really hot in spot were I got the shot. It did feel achy and heavy; This spontaneous case was reported by a consumer and describes the occurrence of VACCINATION SITE WARMTH (My arm was sore. My arm was really hot in spot were I got the shot. It did feel achy and heavy), SKIN DISCOLOURATION (I had a black and blue L shaped mark about an inch in each direction and about 3 inches below), BURNING SENSATION (My entire left arm up into the back of my neck was burning like it was on fire like someone was), BURNING SENSATION (It stopped burning constantly on 04Apr2021 but if you touched the black and blue marks the) and BURNING SENSATION (The burning started going on and off again. It was hurting a lot a night. The burning is coming) in a 65-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 047A21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Fibromyalgia.    On 31-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 31-Mar-2021, the patient experienced VACCINATION SITE WARMTH (My arm was sore. My arm was really hot in spot were I got the shot. It did feel achy and heavy) and MYALGIA (My arm was sore. My arm was really hot in spot were I got the shot. It did feel achy and heavy). On 01-Apr-2021, the patient experienced SKIN DISCOLOURATION (I had a black and blue L shaped mark about an inch in each direction and about 3 inches below) and BURNING SENSATION (My entire left arm up into the back of my neck was burning like it was on fire like someone was). On 04-Apr-2021, the patient experienced BURNING SENSATION (It stopped burning constantly on 04Apr2021 but if you touched the black and blue marks the). On 12-Apr-2021, the patient experienced BURNING SENSATION (The burning started going on and off again. It was hurting a lot a night. The burning is coming). On 27-Apr-2021, the patient experienced PAIN IN EXTREMITY (arm is still hurting but now only in one spot, not the whole arm like before). On an unknown date, the patient experienced VACCINATION SITE DISCOLOURATION (black and blue 2" under the injection site) and MIGRAINE (bad migraines). The patient was treated with IBUPROFEN (MOTRIN [IBUPROFEN]) at an unspecified dose and frequency. On 04-Apr-2021, VACCINATION SITE WARMTH (My arm was sore. My arm was really hot in spot were I got the shot. It did feel achy and heavy), BURNING SENSATION (My entire left arm up into the back of my neck was burning like it was on fire like someone was) and MYALGIA (My arm was sore. My arm was really hot in spot were I got the shot. It did feel achy and heavy) had resolved. At the time of the report, SKIN DISCOLOURATION (I had a black and blue L shaped mark about an inch in each direction and about 3 inches below), VACCINATION SITE DISCOLOURATION (black and blue 2" under the injection site), PAIN IN EXTREMITY (arm is still hurting but now only in one spot, not the whole arm like before) and MIGRAINE (bad migraines) outcome was unknown and BURNING SENSATION (It stopped burning constantly on 04Apr2021 but if you touched the black and blue marks the) and BURNING SENSATION (The burning started going on and off again. It was hurting a lot a night. The burning is coming) had not resolved.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       Concomitant medication information was not provided by the reporter.   Most recent FOLLOW-UP information incorporated above includes: On 27-Apr-2021: New events(Vaccination site discoloration, Pain in extremity, Migraine) added.