Could barely get out of bed; Trouble standing; Trouble walking; Diarrhea; Severe reaction/ Getting worse/ Lingering side effects; Kidney pain; Arm pain/ Always has in pain her lower extremity (legs, thighs, and hips, calf, lower back, and knee pain); Brain frog back and forth; Does not remember certain things; Slowly getting weaker and weaker; She gets extremely tired all the time; This spontaneous case was reported by a consumer and describes the occurrence of VACCINATION COMPLICATION (Severe reaction/ Getting worse/ Lingering side effects), RENAL PAIN (Kidney pain), PAIN IN EXTREMITY (Arm pain/ Always has in pain her lower extremity (legs, thighs, and hips, calf, lower back, and knee pain)), MOBILITY DECREASED (Could barely get out of bed) and DYSSTASIA (Trouble standing) in a 70-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Sickness (Was severely sick in January and got ride herself) in January 2021.    On 15-Mar-2021, the patient received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. In March 2021, the patient experienced VACCINATION COMPLICATION (Severe reaction/ Getting worse/ Lingering side effects), RENAL PAIN (Kidney pain), PAIN IN EXTREMITY (Arm pain/ Always has in pain her lower extremity (legs, thighs, and hips, calf, lower back, and knee pain)) and DIARRHOEA (Diarrhea). On 16-Mar-2021, the patient experienced MOBILITY DECREASED (Could barely get out of bed), DYSSTASIA (Trouble standing) and GAIT DISTURBANCE (Trouble walking). In 2021, the patient experienced FEELING ABNORMAL (Brain frog back and forth), MEMORY IMPAIRMENT (Does not remember certain things), ASTHENIA (Slowly getting weaker and weaker) and FATIGUE (She gets extremely tired all the time). At the time of the report, VACCINATION COMPLICATION (Severe reaction/ Getting worse/ Lingering side effects), RENAL PAIN (Kidney pain), PAIN IN EXTREMITY (Arm pain/ Always has in pain her lower extremity (legs, thighs, and hips, calf, lower back, and knee pain)), MOBILITY DECREASED (Could barely get out of bed), DYSSTASIA (Trouble standing), GAIT DISTURBANCE (Trouble walking), FEELING ABNORMAL (Brain frog back and forth), MEMORY IMPAIRMENT (Does not remember certain things) and FATIGUE (She gets extremely tired all the time) outcome was unknown, DIARRHOEA (Diarrhea) was resolving and ASTHENIA (Slowly getting weaker and weaker) had not resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, Antibody test: negative (Negative) Never tested positive. On an unknown date, Laboratory test: normal (normal) Test all came back fine.     For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   Concomitant medications was not reported. Treatment medications was not reported.  Following to second vaccination, the patient had kidney pain and arm pain after 12 hours.   By the next morning, the patient could barely get out of bed and had trouble standing and walking. Since then the patient had diarrhea for about six months. They been able to reduce the diarrhea but are unable to get rid of it. The patient had difficulty walking around, always had in pain lower extremity (legs, thighs, and hips, calf, lower back, and knee pain). The patient stated the pain was severe one side one day and severe in the other side the next day. The patient was experiencing brain frog back and forth and could not remember certain things. Sometimes the patient would wake up and can not remember the dog's names. The patient gets extremely tired all the time.  HCP was aware of the side effects. HCP sent the patient to a Osteologist which take cares of hips and knees. The patient was slowly getting weaker and weaker. The patient's husband felt like the patient could die anytime. The patient never had COVID-19.   This case was linked to MOD-2021-333397 (Patient Link).   Most recent FOLLOW-UP information incorporated above includes: On 27-Sep-2021: Follow up received on 27 Sep 2021 includes additional reporter, patient's demographics (date of birth), dose 2 details and additional events were updated.