Swollen arm; fluctuations on her heart rate; a fast heart beating; saw everything blurry; Anxiety; panick attacks; a feeling that she was going to faint/felt she was going to pass out; Had a rash on the arm; Arm was hot to the touch; Arm was really red/Arm was red for 10 days; This is a spontaneous report received from contactable reporter(s) (Consumer or other non-HCP). The reporter is the patient. Other Case identifier(s): MOD22-026839 (Moderna).  A female patient received BNT162b2 (BNT162B2), on 08Mar2021 as dose 1, single (Lot number: GN6206) for covid-19 immunisation; elasomeran (MODERNA COVID-19 VACCINE), on 22Apr2022 as dose 4 (booster), single (Lot number: 002M21A) for covid-19 immunisation. The patient's relevant medical history included: "Skin allergies to tapes" (unspecified if ongoing); "allergies to Latex" (unspecified if ongoing); "allergies to Steroid" (unspecified if ongoing); "allergies to Penicillin" (unspecified if ongoing); "allergies to Soap" (unspecified if ongoing). Concomitant medication(s) included: OMEPRAZOLE; ACICLOVIR; IBUPROFEN; ATORVASTATIN; HYDROCHLOROTHIAZIDE; CALCIUM; VITAMIN D [VITAMIN D NOS]; VITAMIN E [VITAMIN E NOS]; VITAMIN C [ASCORBIC ACID] Multivitamins and Probiotics. Past drug history included: Gabapentin, reaction(s): "Drug Allergy". The following information was reported: PERIPHERAL SWELLING (non-serious), outcome "unknown", described as "Swollen arm"; HEART RATE IRREGULAR (non-serious), outcome "unknown", described as "fluctuations on her heart rate"; HEART RATE INCREASED (non-serious), outcome "unknown", described as "a fast heart beating"; VISION BLURRED (non-serious), outcome "unknown", described as "saw everything blurry"; ANXIETY (non-serious), outcome "unknown"; PANIC ATTACK (non-serious), outcome "unknown", described as "panick attacks"; DIZZINESS (non-serious), outcome "unknown", described as "a feeling that she was going to faint/felt she was going to pass out"; ERYTHEMA (non-serious), outcome "recovered", described as "Arm was really red/Arm was red for 10 days"; RASH (non-serious), outcome "unknown", described as "Had a rash on the arm"; FEELING HOT (non-serious), outcome "unknown", described as "Arm was hot to the touch". Relevant laboratory tests and procedures are available in the appropriate section.  Clinical course: Patient reported that arm was really red. Had a rash on the arm. Arm was hot to the touch. Swollen arm. Arm was red for 10 days. She 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. Couldn't control what was happening.   Additional information: Has patient ever had COVID + test or diagnosis reported as no. Medical Hx relating to mentioned AE and both Acute and Chronic illnesses at the time of vaccination reported as no. Other vaccines given within 1 month prior to Moderna COVID-19 vaccine (type, brand, lot, route, dose #) reported as no. Did AE cause patient to seek medical care (office visit, IJrgent care, ER, hospitalized) reported as no. Has the patient experienced a similar event in the past reported as yes, with previous Covid-19 vaccines.   Follow-up attempts are completed. No further information is expected.