I thought what's wrong with my right arm; My hands are hurting/ her right arm hurts every day since and sometimes it's really bad that if she raises her hand she just wants to cry that's how bad it is, it's excruciating pain; My back was hurting too; there are days when she can barely raise her hand; The pain wasn't in my muscles but in my joints / sometimes the pain starts in the upper arm in the shoulder other times in the elbow all the way down to the hand; Something inside the vaccine killed my joints/something inside the vaccine killed her joints; Next day after receiving the COVID-19 vaccine I felt horrible / felt awful; felt sick; This spontaneous case was reported by a consumer and describes the occurrence of FEELING ABNORMAL (Next day after receiving the COVID-19 vaccine I felt horrible / felt awful), LIMB DISCOMFORT (I thought what's wrong with my right arm), PAIN IN EXTREMITY (My hands are hurting/ her right arm hurts every day since and sometimes it's really bad that if she raises her hand she just wants to cry that's how bad it is, it's excruciating pain), BACK PAIN (My back was hurting too) and ILLNESS (felt sick) in a 79-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 939903 and 012M20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included Arthritis (she has arthritis but she has never experienced any pain before.) and Thyroid disorder NOS. Concomitant products included APIXABAN (ELIQUIS) for Anticoagulant therapy, LEVOTHYROXINE for Thyroid disorder NOS.   On 08-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 02-Feb-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 01-Nov-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 02-Nov-2021, the patient experienced FEELING ABNORMAL (Next day after receiving the COVID-19 vaccine I felt horrible / felt awful) and ILLNESS (felt sick). On an unknown date, the patient experienced LIMB DISCOMFORT (I thought what's wrong with my right arm), PAIN IN EXTREMITY (My hands are hurting/ her right arm hurts every day since and sometimes it's really bad that if she raises her hand she just wants to cry that's how bad it is, it's excruciating pain), BACK PAIN (My back was hurting too), MOBILITY DECREASED (there are days when she can barely raise her hand), ARTHRALGIA (The pain wasn't in my muscles but in my joints / sometimes the pain starts in the upper arm in the shoulder other times in the elbow all the way down to the hand) and PRODUCT QUALITY ISSUE (Something inside the vaccine killed my joints/something inside the vaccine killed her joints). At the time of the report, FEELING ABNORMAL (Next day after receiving the COVID-19 vaccine I felt horrible / felt awful), LIMB DISCOMFORT (I thought what's wrong with my right arm), PAIN IN EXTREMITY (My hands are hurting/ her right arm hurts every day since and sometimes it's really bad that if she raises her hand she just wants to cry that's how bad it is, it's excruciating pain), BACK PAIN (My back was hurting too), ILLNESS (felt sick), MOBILITY DECREASED (there are days when she can barely raise her hand) and ARTHRALGIA (The pain wasn't in my muscles but in my joints / sometimes the pain starts in the upper arm in the shoulder other times in the elbow all the way down to the hand) had not resolved and PRODUCT QUALITY ISSUE (Something inside the vaccine killed my joints/something inside the vaccine killed her joints) outcome was unknown.            No treatment medications were provided. Concomitant medication included Eliquis as blood thinner, Cholesterol medicine and Levothyroxine a thyroid pill.  On the day of reporting the patient still has arm pain not in the muscle but the joints, she stated that something inside of the vaccine attacked her joints, because her arm had never hurt before, sometimes the pain started in the upper arm in the shoulder other times in the elbow all the way down to the hand.  Patient can barely raise her hand and that something inside the vaccine killed her joints.  Patient mentioned her symptoms to her doctor and he told her that it cannot be the vaccine because she received the vaccine in the left arm not the right arm, and on 15 Feb 2022 she has an appointment to see the orthopedic surgeon to see what was going on if it was the arthritis or maybe a pinched nerve. Patient was a very active person who has been affected by this side effect and she did not have joint pain before taking the shot.  Most recent FOLLOW-UP information incorporated above includes: On 21-Jan-2022: QE-014512 was added for this report.