Patient has not had second dose; I was lightheaded and shaky; I was lightheaded and shaky; headache; This spontaneous case was reported by a consumer and describes the occurrence of DIZZINESS (I was lightheaded and shaky), TREMOR (I was lightheaded and shaky), HEADACHE (headache) and PRODUCT DOSE OMISSION ISSUE (Patient has not had second dose) in a 64-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 043B21A) for COVID-19 vaccination.     Concurrent medical conditions included Thyroid disorder NOS since 1978, Blood pressure high since 2016, Psoriatic arthritis since 1990, Psoriasis since 1990, Osteoporosis since 2021, Vision abnormal NOS, Restless legs since 2019, Drug allergy (Bactrim allergy), Drug allergy (azulfidine allergy), Drug allergy (tapazole allergy), Drug allergy (hydrochlorothiazide allergy), Drug allergy (leflunomide allergy), Drug allergy (macrobid allergy) and Drug allergy (doxycycline allergy). Concomitant products included AMOXICILLIN TRIHYDRATE, CLARITHROMYCIN, ESOMEPRAZOLE MAGNESIUM (NEXIUM 1-2-3) for Acid reflux (oesophageal), CETIRIZINE HYDROCHLORIDE (ZYRTEC R) for Allergy, CELECOXIB (CELEBREX) from 2002 to an unknown date for Arthritis, ROSUVASTATIN CALCIUM (CRESTOR) for Blood cholesterol, AMLODIPINE BESILATE (NORVASC) from 2019 to an unknown date for Blood pressure, LISINOPRIL from 2013 to an unknown date for Blood pressure high, CLONAZEPAM from 2019 to an unknown date for Heaviness in leg, CALCIUM and DENOSUMAB (PROLIA) from January 2021 to an unknown date for Osteoporosis, ETANERCEPT (ENBREL) from 2004 to an unknown date for Psoriatic arthritis, THYROID (ARMOUR THYROID) for Thyroid disorder NOS, ASCORBIC ACID, TOCOPHERYL ACETATE, XANTOFYL, ZEAXANTHIN, ZINC (AREDS) for Vision abnormal NOS, ACETYLSALICYLIC ACID (ASPRIN), COLECALCIFEROL (VITAMIN D 3), VITAMIN B NOS and PROBIOTIC 10 for an unknown indication.    On 21-Apr-2021 at 11:45 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 21-Apr-2021, the patient experienced DIZZINESS (I was lightheaded and shaky), TREMOR (I was lightheaded and shaky) and HEADACHE (headache). On an unknown date, the patient experienced PRODUCT DOSE OMISSION ISSUE (Patient has not had second dose). The patient was treated with PARACETAMOL (TYLENOL) for Headache, at a dose of 1 dosage form. On 21-Apr-2021, DIZZINESS (I was lightheaded and shaky), TREMOR (I was lightheaded and shaky) and HEADACHE (headache) had resolved. At the time of the report, PRODUCT DOSE OMISSION ISSUE (Patient has not had second dose) had resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 21-Apr-2021, Blood pressure measurement: 162/75 (High) Increased, this lasted about three hours.. On 21-Apr-2021, Heart rate: 107 (High) Increased, this lasted about three hours..     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   Other concomitant medications include xyrtec used for unknown indication and clonopan used for restless leg.   Most recent FOLLOW-UP information incorporated above includes: On 27-Aug-2021: Updated reporter information, patient demographics, added patient past relevant history, concomitant and treatment medications and added new event. On 30-Aug-2021: Significant Follow Up Appended- Event added On 31-Aug-2021: Patients height, weight ,Race, Ethnicity was updated, Current condition start date and Allergies was added, Concomitant drugs start date and indications were updated. Events start date, stop date and outcome updated to Recovered.