felt paralyzed and could barely walk; left and right hand as well as index finger and baby finger were also painful.; loss of balance, loss of balance and it feels as if his legs wouldn't take him in the direction he wants to go in. This sometimes gets better and sometimes gets worse\feels like a baby learning to walk; lost control of his left arm; lower backside pain which has resolved.; achy knees and his lower legs felt like he was walking on cushions.; headache in his left side of the head which comes and goes; achy knees and his lower legs felt like he was walking on cushions.; fever which he suffered through; This spontaneous case was reported by a consumer and describes the occurrence of GAIT SPASTIC (felt paralyzed and could barely walk), PAIN IN EXTREMITY (left and right hand as well as index finger and baby finger were also painful.), BALANCE DISORDER (loss of balance, loss of balance and it feels as if his legs wouldn't take him in the direction he wants to go in. This sometimes gets better and sometimes gets worse\feels like a baby learning to walk), VACCINATION SITE MOVEMENT IMPAIRMENT (lost control of his left arm) and BACK PAIN (lower backside pain which has resolved.) in a 79-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 023M20A and 041L20VX) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.   On 30-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 27-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 28-Feb-2021, the patient experienced GAIT SPASTIC (felt paralyzed and could barely walk), PAIN IN EXTREMITY (left and right hand as well as index finger and baby finger were also painful.), BALANCE DISORDER (loss of balance, loss of balance and it feels as if his legs wouldn't take him in the direction he wants to go in. This sometimes gets better and sometimes gets worse\feels like a baby learning to walk), VACCINATION SITE MOVEMENT IMPAIRMENT (lost control of his left arm), BACK PAIN (lower backside pain which has resolved.), GAIT DISTURBANCE (achy knees and his lower legs felt like he was walking on cushions.), HEADACHE (headache in his left side of the head which comes and goes), ARTHRALGIA (achy knees and his lower legs felt like he was walking on cushions.) and PYREXIA (fever which he suffered through). The patient was treated with PARACETAMOL (TYLENOL) ongoing since an unknown date for Aches & pains in legs and Fever, at a dose of 1 dosage form and GABAPENTIN ongoing since an unknown date for Aches & pains in legs and Ache, at a dose of 1000 mg (total/day). On 01-Mar-2021, PAIN IN EXTREMITY (left and right hand as well as index finger and baby finger were also painful.) had resolved. On 07-Mar-2021, GAIT SPASTIC (felt paralyzed and could barely walk) and VACCINATION SITE MOVEMENT IMPAIRMENT (lost control of his left arm) had resolved. At the time of the report, BALANCE DISORDER (loss of balance, loss of balance and it feels as if his legs wouldn't take him in the direction he wants to go in. This sometimes gets better and sometimes gets worse\feels like a baby learning to walk), BACK PAIN (lower backside pain which has resolved.), GAIT DISTURBANCE (achy knees and his lower legs felt like he was walking on cushions.), HEADACHE (headache in his left side of the head which comes and goes), ARTHRALGIA (achy knees and his lower legs felt like he was walking on cushions.) and PYREXIA (fever which he suffered through) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, X-ray: normal (normal) Normal.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   No concomitant product details were provided Treatment details include Tylenol with inappropriate start date   Most recent FOLLOW-UP information incorporated above includes: On 17-Jun-2021: Patient informed that he is still having problems with his leg and loses balance. He would like to talk to someone from Moderna or VAERS