started to feel weird/ very strange; started to feel  dizzy/ Felt Dizzy; really bad vertigo episode/bad episode of vertigo/tiny episodes/ leaning to the left; almost fell down; It took a little while to obtain my balance back.; Sweating; This spontaneous case was reported by a consumer and describes the occurrence of FEELING ABNORMAL (started to feel weird/ very strange), DIZZINESS (started to feel  dizzy/ Felt Dizzy), VERTIGO (really bad vertigo episode/bad episode of vertigo/tiny episodes/ leaning to the left), FALL (almost fell down) and BALANCE DISORDER (It took a little while to obtain my balance back.) in a 69-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 043L20A and 024M20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Diabetes (It's been yrs since patient had diabetes can 't remember date.). Concomitant products included ATORVASTATIN CALCIUM (LIPITOR) for Blood cholesterol, ESCITALOPRAM OXALATE (LEXAPRO) for Depression and Anxiety, METFORMIN for Diabetes, ACETYLSALICYLIC ACID (BABY ASPIRIN), VITAMINS NOS, UBIDECARENONE, VITAMIN E NOS (COQ10 COMPLEX), CALCIUM and VITAMIN D NOS for an unknown indication.   On 20-Jan-2021 at 3:00 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 17-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 23-Oct-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 21-Jan-2021, the patient experienced FEELING ABNORMAL (started to feel weird/ very strange), DIZZINESS (started to feel  dizzy/ Felt Dizzy), VERTIGO (really bad vertigo episode/bad episode of vertigo/tiny episodes/ leaning to the left), FALL (almost fell down), BALANCE DISORDER (It took a little while to obtain my balance back.) and HYPERHIDROSIS (Sweating). At the time of the report, FEELING ABNORMAL (started to feel weird/ very strange), DIZZINESS (started to feel  dizzy/ Felt Dizzy), VERTIGO (really bad vertigo episode/bad episode of vertigo/tiny episodes/ leaning to the left), FALL (almost fell down), BALANCE DISORDER (It took a little while to obtain my balance back.) and HYPERHIDROSIS (Sweating) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 21-Jan-2021, Blood pressure measurement: increased (High) increased. On 21-Jan-2021, Heart rate: increased (High) increased.   Patient reported that after the first dose of the Moderna vaccine, the next day, around 8 am the patient went out for a walk and started to feel weird and dizzy, leaning to the left, had a really bad vertigo episode almost fell down. that same evening had another bad episode of vertigo, and for a couple of days after that patient had tiny episodes. It was scary. It took a little while to obtain balance back.  Patient didn't complete walk and walk back home, Patient felt all better after 5-10 minutes, approximately.  Patient mentions they got the vaccines in another town that was at a higher altitude (around 6000) and drove home the same day.  No treatment medications were reported.  Most recent FOLLOW-UP information incorporated above includes: On 28-Oct-2021: Follow up information received: Added patient demographics, Medical history, events, dose information and concomitant products indication added. On 28-Oct-2021: follow up information received contains no new information.