Sleeping disorder that caused him to be able to hear himself whenever he was sleeping; Brain fog; Swishing sensation in ears when lying down; Sore arm at the injection site; Chills; Heart palpitaion issues/swishing sensation in his ear that coincided with his heart beats whenever he would lay down; Brain fog (brain delay to motor function); Stomach problems/swishing sensation in his ear that coincided with his heart beats whenever he would lay down; Headache; This spontaneous case was reported by a consumer (subsequently medically confirmed) and describes the occurrence of PALPITATIONS (Heart palpitaion issues/swishing sensation in his ear that coincided with his heart beats whenever he would lay down), HYPOKINESIA (Brain fog (brain delay to motor function)), SLEEP DISORDER (Sleeping disorder that caused him to be able to hear himself whenever he was sleeping), ABDOMINAL DISCOMFORT (Stomach problems/swishing sensation in his ear that coincided with his heart beats whenever he would lay down) and FEELING ABNORMAL (Brain fog) in a 58-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 029A21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No medical history was provided by the reporter.  The patient's past medical history included Gastrointestinal discomfort (Severe gastrointestinal discomfort : took almost 6 to 7 months to subside.These same gastrointestinal symptoms seemed to reoccur after receiving the Moderna COVID vaccines, and more so after the first dose.) in June 2020. Concurrent medical conditions included Penicillin allergy, Fruit allergy (Citrus), Vegetable allergy (Tomatoes), Food allergy (Soy), Allergy (Since Childhood) since 18-Dec-1962 and Asthma (Since Childhood) since 18-Dec-1962. Concomitant products included ALBUTEROL SULFATE and BUDESONIDE, FORMOTEROL FUMARATE (SYMBICORT) for Difficulty breathing, MOMETASONE FUROATE for Eczema, FLUTICASONE FUROATE, VILANTEROL TRIFENATATE (BREO ELLIPTA) for an unknown indication.    On 04-Mar-2021 at 6:00 PM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 05-Mar-2021, the patient experienced HYPOKINESIA (Brain fog (brain delay to motor function)), ABDOMINAL DISCOMFORT (Stomach problems/swishing sensation in his ear that coincided with his heart beats whenever he would lay down) and HEADACHE (Headache). On 05-Mar-2021 at 1:00 AM, the patient experienced PALPITATIONS (Heart palpitaion issues/swishing sensation in his ear that coincided with his heart beats whenever he would lay down). On an unknown date, the patient experienced SLEEP DISORDER (Sleeping disorder that caused him to be able to hear himself whenever he was sleeping), FEELING ABNORMAL (Brain fog), TINNITUS (Swishing sensation in ears when lying down), VACCINATION SITE PAIN (Sore arm at the injection site) and CHILLS (Chills). At the time of the report, PALPITATIONS (Heart palpitaion issues/swishing sensation in his ear that coincided with his heart beats whenever he would lay down), HYPOKINESIA (Brain fog (brain delay to motor function)) and ABDOMINAL DISCOMFORT (Stomach problems/swishing sensation in his ear that coincided with his heart beats whenever he would lay down) was resolving and SLEEP DISORDER (Sleeping disorder that caused him to be able to hear himself whenever he was sleeping), FEELING ABNORMAL (Brain fog), TINNITUS (Swishing sensation in ears when lying down), VACCINATION SITE PAIN (Sore arm at the injection site), HEADACHE (Headache) and CHILLS (Chills) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 26-Mar-2021, Electrocardiogram: normal (normal) The patient went to a Cardiologist that took an EKG and other tests and did not see any issues with the heart(nothing significant).. On an unknown date, Blood test: normal (normal) Nothing significant. On an unknown date, Urine analysis: normal (normal) Nothing significant.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       This case was linked to MOD-2021-092379 (Patient Link).   Most recent FOLLOW-UP information incorporated above includes: On 07-Jun-2021: Additional information received on 07-Jun-2021 : Updated medical history, concomitant medication, vaccine information, events and lab data added.