Heart was racing; Tachycardia; Heart beating really fast; Very Pale; Sweating a lot; Were breathless, like they have jogged for 3 miles; Shaking; Back of the head was banging; Scared of having heart attack; Really sick; Weak; Pain in their limbs; Compelling to vomit but not able to do so; Like having COVID-19; Headache so bad; Muscle pain throughout the body; Chills; Very bad Nausea; This spontaneous case was reported by a consumer and describes the occurrence of PALPITATIONS (Heart was racing), TACHYCARDIA (Tachycardia), EXTRASYSTOLES (Heart beating really fast), PALLOR (Very Pale) and HYPERHIDROSIS (Sweating a lot) in a 56-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.    On 10-Feb-2021, the patient received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. In February 2021, the patient experienced PALPITATIONS (Heart was racing), TACHYCARDIA (Tachycardia), EXTRASYSTOLES (Heart beating really fast), PALLOR (Very Pale), HYPERHIDROSIS (Sweating a lot), DYSPNOEA (Were breathless, like they have jogged for 3 miles), TREMOR (Shaking), HEAD BANGING (Back of the head was banging ), FEAR OF DISEASE (Scared of having heart attack), ILLNESS (Really sick), ASTHENIA (Weak), PAIN IN EXTREMITY (Pain in their limbs), VOMITING PSYCHOGENIC (Compelling to vomit but not able to do so   ), FEAR OF DISEASE (Like having COVID-19), HEADACHE (Headache so bad), MYALGIA (Muscle pain throughout the body), CHILLS (Chills) and NAUSEA (Very bad Nausea   ). At the time of the report, PALPITATIONS (Heart was racing), TACHYCARDIA (Tachycardia), EXTRASYSTOLES (Heart beating really fast) and DYSPNOEA (Were breathless, like they have jogged for 3 miles) had resolved and PALLOR (Very Pale), HYPERHIDROSIS (Sweating a lot), TREMOR (Shaking), HEAD BANGING (Back of the head was banging ), FEAR OF DISEASE (Scared of having heart attack), ILLNESS (Really sick), ASTHENIA (Weak), PAIN IN EXTREMITY (Pain in their limbs), VOMITING PSYCHOGENIC (Compelling to vomit but not able to do so   ), FEAR OF DISEASE (Like having COVID-19), HEADACHE (Headache so bad), MYALGIA (Muscle pain throughout the body), CHILLS (Chills) and NAUSEA (Very bad Nausea   ) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In February 2021, Heart rate: 100 (High) Pulse was at a 100. All these started around 2am on the third night after the second dose and lasted for around 14 hours.         Concomitant product use was not provided.   Treatment information was not  provided.  Patient got both doses but is scared of getting the third dose because after the second one all Events started around 2am on the third night. During the day they were very pale, sweating a lot and all day long their heart was racing and then stopped abruptly. Patient states that heart conditions run in  their family.  Patient had been really sick from around 10-12 hours with a headache so bad, their back of the head was banging. Patient states they do not take any medication regularly, Patient says they are not going to take the third dose because they are scared.  Patient mentions their child had a similar reaction (patient 2) and bring them to the phone.