Ehlers Danlos aggravated; increased pain sensation; did not receive second moderna covid 19 injection; POTS like symptoms; rapid increase in heart rate which is unpredictable; sudden onset especially when hot; tremors in body for two weeks/Full body tremors; decreased sensation in legs; felt as though she was walking on pillows and felt very unstable; felt as though she was walking on pillows and felt very unstable; elevation in blood pressure; elevation in heart rate; This spontaneous case was reported by a consumer and describes the occurrence of TREMOR (tremors in body for two weeks/Full body tremors), BLOOD PRESSURE INCREASED (elevation in blood pressure), HEART RATE INCREASED (elevation in heart rate), HYPOAESTHESIA (decreased sensation in legs; felt as though she was walking on pillows and felt very unstable) and GAIT DISTURBANCE (felt as though she was walking on pillows and felt very unstable) in a 33-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 025B21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Ehlers-Danlos syndrome and Seasonal allergy. Concomitant products included LORATADINE (CLARITIN [LORATADINE]) for Seasonal allergy, VITAMIN D NOS and BIOTIN for an unknown indication.    On 06-Apr-2021 at 8:00 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 06-Apr-2021, the patient experienced GAIT DISTURBANCE (felt as though she was walking on pillows and felt very unstable). On 06-Apr-2021 at 6:00 PM, the patient experienced HYPOAESTHESIA (decreased sensation in legs; felt as though she was walking on pillows and felt very unstable). On 07-Apr-2021, the patient experienced TREMOR (tremors in body for two weeks/Full body tremors) and POSTURAL ORTHOSTATIC TACHYCARDIA SYNDROME (POTS like symptoms; rapid increase in heart rate which is unpredictable; sudden onset especially when hot). In April 2021, the patient experienced BLOOD PRESSURE INCREASED (elevation in blood pressure) and HEART RATE INCREASED (elevation in heart rate). On an unknown date, the patient experienced CONDITION AGGRAVATED (Ehlers Danlos aggravated; increased pain sensation) and PRODUCT DOSE OMISSION ISSUE (did not receive second moderna covid 19 injection). On 06-May-2021, TREMOR (tremors in body for two weeks/Full body tremors) had resolved. On 20-May-2021, HYPOAESTHESIA (decreased sensation in legs; felt as though she was walking on pillows and felt very unstable) and GAIT DISTURBANCE (felt as though she was walking on pillows and felt very unstable) had resolved. At the time of the report, BLOOD PRESSURE INCREASED (elevation in blood pressure), HEART RATE INCREASED (elevation in heart rate) and POSTURAL ORTHOSTATIC TACHYCARDIA SYNDROME (POTS like symptoms; rapid increase in heart rate which is unpredictable; sudden onset especially when hot) had not resolved, CONDITION AGGRAVATED (Ehlers Danlos aggravated; increased pain sensation) outcome was unknown and PRODUCT DOSE OMISSION ISSUE (did not receive second moderna covid 19 injection) had resolved.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       The  mother of the patient reported that a week later patient experienced tremors in body , elevation in heart rate and blood pressure. She did not receive the second dose because of these side effects.   Treatment medication was not reported.   Most recent FOLLOW-UP information incorporated above includes: On 25-Jul-2021: Patient demographics, medical history updated. Concomitant medications Claritin, vitamin D and Biotin added. New events Full Body Tremors, Decreased Sensation in Legs and POTS like Symptoms added. On 26-Jul-2021: Non-significant follow-up appended