Slept for 12 hours; some kind of allergy/allergic reaction; Really dizzy; Vertigo; Felt like she was going to pass out; Rash at injection site; Didn't receive Moderna's second shot; Feelings of fainting; A kind of slashing, sore arm; Rash all over the body/Rash at injection site and chest area; Lymph nodes in the neck; Headaches; Abdominal pains; Fast heart beats; Poor appetite; This spontaneous case was reported by a consumer and describes the occurrence of PRESYNCOPE (Feelings of fainting), PAIN IN EXTREMITY (A kind of slashing, sore arm), HYPERSOMNIA (Slept for 12 hours), ABDOMINAL PAIN (Abdominal pains) and HEART RATE INCREASED (Fast heart beats) in a 72-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 010A21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Eczema.    On 27-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 12-Mar-2021, the patient experienced PRESYNCOPE (Feelings of fainting). 12-Mar-2021, the patient experienced PAIN IN EXTREMITY (A kind of slashing, sore arm), ABDOMINAL PAIN (Abdominal pains), HEART RATE INCREASED (Fast heart beats), DECREASED APPETITE (Poor appetite), RASH (Rash all over the body/Rash at injection site and chest area), LYMPHADENOPATHY (Lymph nodes in the neck) and HEADACHE (Headaches). On an unknown date, the patient experienced HYPERSOMNIA (Slept for 12 hours), ALLERGY TO VACCINE (some kind of allergy/allergic reaction), DIZZINESS (Really dizzy), VERTIGO (Vertigo), FEELING ABNORMAL (Felt like she was going to pass out), VACCINATION SITE RASH (Rash at injection site) and PRODUCT DOSE OMISSION ISSUE (Didn't receive Moderna's second shot). The patient was treated with DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) for Adverse event, at an unspecified dose and frequency. At the time of the report, PRESYNCOPE (Feelings of fainting), PAIN IN EXTREMITY (A kind of slashing, sore arm), HYPERSOMNIA (Slept for 12 hours), ABDOMINAL PAIN (Abdominal pains), HEART RATE INCREASED (Fast heart beats), DECREASED APPETITE (Poor appetite), ALLERGY TO VACCINE (some kind of allergy/allergic reaction), DIZZINESS (Really dizzy), VERTIGO (Vertigo), FEELING ABNORMAL (Felt like she was going to pass out), RASH (Rash all over the body/Rash at injection site and chest area), LYMPHADENOPATHY (Lymph nodes in the neck), HEADACHE (Headaches), VACCINATION SITE RASH (Rash at injection site) and PRODUCT DOSE OMISSION ISSUE (Didn't receive Moderna's second shot) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 12-Mar-2021, Heart rate: high (High) High. On an unknown date, Antibody test: negative (Negative) Negative (didn't have COVID) and positive (Positive) positive for antibodies against the Spike Protein.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       No relevant concomitant medications were reported.  no treatment medications were reported.  After receiving Moderna's first dose in February patient developed allergic reaction and was advised not to take the second shot and was really dizzy, having vertigo and feeling like was going to pass out. Also, developed a rash that was not only at the injection site but all over chest area.   Patient's waned to know did Spike protein antibodies protect against the Delta variant.   Most recent FOLLOW-UP information incorporated above includes: On 31-Mar-2021: Follow up received on 31 Mar 2021 included no new information. On 30-Jun-2021: Reporter Qualification was updated (from HCP to Non-HCP) and added event allergy to vaccine with outcome unknown. On 05-Aug-2021: Follow up received included reporter address, additional events really dizzy, vertigo, felt like she was going to pass out, rash at injection site and chest area, didn't receive moderna's second shot.; Sender's Comments: Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded.