Arm was hot to the touch; Swollen arm; fluctuations on her heart rate; fast heart beating; saw everything blurry; Anxiety; panick attacks/Couldn´t control what was happening; she had a feeling that she was going to faint, felt she was going to pass out; Had a rash on the arm; Arm was really red for 10 days; This spontaneous case was reported by a patient and describes the occurrence of ERYTHEMA (Arm was really red for 10 days), FEELING HOT (Arm was hot to the touch), PERIPHERAL SWELLING (Swollen arm), HEART RATE ABNORMAL (fluctuations on her heart rate) and HEART RATE INCREASED (fast heart beating) in a 65-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 002M21A) for COVID-19 prophylaxis. The occurrence of additional non-serious events is detailed below.     Patient did not have COVID positive test or diagnosis. There were no medical treatment relating to mentioned AE and both Acute and Chronic illnesses at the time of vaccination. No other vaccines given within 1 month prior to Moderna COVID-19 vaccine.  Previously administered products included for Product used for unknown indication: Pfizer (Dose number 1. Lot number-GN6206) on 08-Mar-2021, Pfizer (Dose number 2 Lot number-GN6204) on 29-Mar-2021 and Pfizer (Dose number 3 (1st booster) Lot number-FF2590) on 15-Oct-2021. Past adverse reactions to the above products included Adverse event with Pfizer, Pfizer and Pfizer. Concurrent medical conditions included Adhesive tape allergy (Skin allergies to tapes), Latex allergy, Penicillin allergy, Drug allergy (Allergy to Gabapentin), Soap allergy and Allergy (Allergy to steroid injections). Concomitant products included OMEPRAZOLE, ACICLOVIR, IBUPROFEN, ATORVASTATIN, HYDROCHLOROTHIAZIDE, MULTIVITAMINS [VITAMINS NOS], CALCIUM, VITAMIN D NOS, VITAMIN E [VITAMIN E NOS], VITAMIN C [ASCORBIC ACID] and PROBIOTICS NOS for an unknown indication.    On 22-Apr-2022, the patient received fourth dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On an unknown date, the patient experienced ERYTHEMA (Arm was really red for 10 days), FEELING HOT (Arm was hot to the touch), PERIPHERAL SWELLING (Swollen arm), HEART RATE ABNORMAL (fluctuations on her heart rate), HEART RATE INCREASED (fast heart beating), VISION BLURRED (saw everything blurry), ANXIETY (Anxiety), PANIC ATTACK (panick attacks/Couldn´t control what was happening), PRESYNCOPE (she had a feeling that she was going to faint, felt she was going to pass out) and RASH (Had a rash on the arm). At the time of the report, ERYTHEMA (Arm was really red for 10 days), FEELING HOT (Arm was hot to the touch), PERIPHERAL SWELLING (Swollen arm), HEART RATE ABNORMAL (fluctuations on her heart rate), HEART RATE INCREASED (fast heart beating), VISION BLURRED (saw everything blurry), ANXIETY (Anxiety), PANIC ATTACK (panick attacks/Couldn´t control what was happening), PRESYNCOPE (she had a feeling that she was going to faint, felt she was going to pass out) and RASH (Had a rash on the arm) had resolved.            Patient did not have COVID positive test. No Acute and Chronic illnesses at the time of vaccination.  No other vaccines given within 1 month prior to Moderna COVID-19 vaccine.  AE did not cause patient to seek medical care (office visit, Urgent care, ER, hospitalized). The patient experienced a similar event in the past with previous Covid-19 vaccines. Patient experienced fluctuations on her heart rate and a fast heart beating. Had some episodes where she saw everything blurry, she had a feeling that she was going to faint, felt she was going to pass out. Anxiety, panick attacks. Could not control what was happening. symptoms improved.  No treatment medication was reported.