night sweats; tenderness which is sometimes felt, sometimes not felt, in the lymph nodes of the right arm; feel and see a pronounced aortic pulse under her rib cage; not sleeping; woke up soaking wet four times during the night; body odor being secreted from that one right arm; left arm was red with a big patch; pain during the injection; Large rump at the site of injection; small spot of red at the injection site; This spontaneous case was reported by a patient and describes the occurrence of VACCINATION SITE MASS (Large rump at the site of injection), VACCINATION SITE ERYTHEMA (small spot of red at the injection site), NIGHT SWEATS (night sweats), LYMPH NODE PAIN (tenderness which is sometimes felt, sometimes not felt, in the lymph nodes of the right arm) and PULSE ABNORMAL (feel and see a pronounced aortic pulse under her rib cage) in a 66-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 006H20A and 001B21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included No adverse event (Medical history was not provided). Concomitant products included GABAPENTIN, CYANOCOBALAMIN, FOLIC ACID (VITAMIN B12 & FOLIC ACID), CALCIUM CARBONATE, COLECALCIFEROL (VITAMIN D 2000), MAGNESIUM, MELATONIN, PARACETAMOL (TYLENOL) and Prolotherapy for an unknown indication.   On 13-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 13-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to at an unspecified dose. On 14-Feb-2021, the patient experienced VACCINATION SITE MASS (Large rump at the site of injection) and VACCINATION SITE ERYTHEMA (small spot of red at the injection site). On 13-Mar-2021, the patient experienced VACCINATION SITE PAIN (pain during the injection). On an unknown date, the patient experienced NIGHT SWEATS (night sweats), LYMPH NODE PAIN (tenderness which is sometimes felt, sometimes not felt, in the lymph nodes of the right arm), PULSE ABNORMAL (feel and see a pronounced aortic pulse under her rib cage), INSOMNIA (not sleeping), HYPERHIDROSIS (woke up soaking wet four times during the night), SKIN ODOUR ABNORMAL (body odor being secreted from that one right arm) and ERYTHEMA (left arm was red with a big patch). The patient was treated with LORATADINE, PSEUDOEPHEDRINE HYDROCHLORIDE (BENADRYL 24 D) at an unspecified dose and frequency. On 13-Mar-2021, VACCINATION SITE PAIN (pain during the injection) had resolved. At the time of the report, VACCINATION SITE MASS (Large rump at the site of injection) had not resolved, VACCINATION SITE ERYTHEMA (small spot of red at the injection site), NIGHT SWEATS (night sweats), LYMPH NODE PAIN (tenderness which is sometimes felt, sometimes not felt, in the lymph nodes of the right arm), PULSE ABNORMAL (feel and see a pronounced aortic pulse under her rib cage), INSOMNIA (not sleeping), HYPERHIDROSIS (woke up soaking wet four times during the night) and SKIN ODOUR ABNORMAL (body odor being secreted from that one right arm) outcome was unknown and ERYTHEMA (left arm was red with a big patch) had resolved.            This case was linked to MOD-2021-080481.   Most recent FOLLOW-UP information incorporated above includes: On 19-Apr-2021: Follow-up received on 19-APR-2021.The patient provided the date and Batch Lot number for both first and second dose.Several Concomitant medication were provided by the patient : gabapentin, Vitamin B12, Vitamin D, Magnesium, Melatonin, Advil or Tylenol, prolotherapy.The patient reported taking Benadryl as treatment medication prior to the second dose.The patient reported new events such as: small red spots at the injection site after the first dose, big red patch which resolved prior to the second dose, felt pain during the injection of the second dose, started having night sweats which have not resolved, body odor being secreted from  right arm, woke up soaking wet four times during the night, tenderness in the lymph nodes of the right arm, feel and see a pronounced aortic pulse under her rib cage.