dizzines, lightheadedness to the point she can't stand up; face feeling flush; like having the flu; face feeling flush or swollen; Having dizziness; Could not sleep on right side because it hurt so bad/could not sleep on her right side the first couple of night; Had fever of 99.5 degrees/fever of 99.5; Arm hurts; pain at the injection site/could not sleep on her right side the first could not sleep on her right side the first; redness (my arm turned beet red) at the injection site; Shot left knot under the skin, size of golf ball in arm/a big round knot; swelling; This spontaneous case was reported by a consumer and describes the occurrence of DIZZINESS (Having dizziness), INSOMNIA (Could not sleep on right side because it hurt so bad/could not sleep on her right side the first couple of night), SKIN MASS (Shot left knot under the skin, size of golf ball in arm/a big round knot), SWELLING (swelling) and DIZZINESS POSTURAL (dizzines, lightheadedness to the point she can't stand up) in a 74-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 025C21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Thyroid disorder and Anxiety.    On 25-Jun-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 25-Jun-2021, the patient experienced SKIN MASS (Shot left knot under the skin, size of golf ball in arm/a big round knot), SWELLING (swelling), VACCINATION SITE PAIN (pain at the injection site/could not sleep on her right side the first could not sleep on her right side the first) and VACCINATION SITE ERYTHEMA (redness (my arm turned beet red) at the injection site). On 26-Jun-2021, the patient experienced INSOMNIA (Could not sleep on right side because it hurt so bad/could not sleep on her right side the first couple of night), PYREXIA (Had fever of 99.5 degrees/fever of 99.5) and MYALGIA (Arm hurts). On 27-Jun-2021, the patient experienced DIZZINESS (Having dizziness), DIZZINESS POSTURAL (dizzines, lightheadedness to the point she can't stand up), FLUSHING (face feeling flush), INFLUENZA LIKE ILLNESS (like having the flu) and SWELLING FACE (face feeling flush or swollen). The patient was treated with PARACETAMOL (TYLENOL) at a dose of 1 dosage form. On 27-Jun-2021, INSOMNIA (Could not sleep on right side because it hurt so bad/could not sleep on her right side the first couple of night), VACCINATION SITE PAIN (pain at the injection site/could not sleep on her right side the first could not sleep on her right side the first) and VACCINATION SITE ERYTHEMA (redness (my arm turned beet red) at the injection site) had resolved. On 28-Jun-2021, PYREXIA (Had fever of 99.5 degrees/fever of 99.5) had resolved. On 09-Jul-2021, SKIN MASS (Shot left knot under the skin, size of golf ball in arm/a big round knot) and SWELLING (swelling) had resolved. At the time of the report, DIZZINESS (Having dizziness) and MYALGIA (Arm hurts) had not resolved and DIZZINESS POSTURAL (dizzines, lightheadedness to the point she can't stand up), FLUSHING (face feeling flush), INFLUENZA LIKE ILLNESS (like having the flu) and SWELLING FACE (face feeling flush or swollen) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 26-Jun-2021, Body temperature: 99.5 (abnormal) Had fever of 99.5 degrees.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   No concomitant medications were provided by the reporter.   Most recent FOLLOW-UP information incorporated above includes: On 12-Jul-2021: Follow-up information received on 12 Jul 2021 contains significant information added medical history anxiety, added anatomical location right arm, added treatment drug Tylenol, added events vaccination site erythema, vaccination site pain, swelling face, flu like symptoms, flushing of face, dizziness, swelling, updated skin mass and insomnia stop dates and outcome to recovered