Suspected blood clots, blood clots all over her body; Some sort epileptic seizure,seeing like short circuit and getting electrocuted,continued having these violent fits,tried to rip everything off,went through one of those fits.; Did not have the energy to eat; Developed a dry cough/hack; Developed pain in left side of her back; Chronic sinus issues; Could not breathe,laboring to breathe; doubled over into lap, doubled over from the waist down; Had trouble speaking,She could only get a couple words at time before heaving for air; Could barely walk,holding to the rail; Heart could not take; This spontaneous case was reported by a consumer and describes the occurrence of EPILEPSY (Some sort epileptic seizure,seeing like short circuit and getting electrocuted,continued having these violent fits,tried to rip everything off,went through one of those fits.), CARDIAC FAILURE (Heart could not take), THROMBOSIS (Suspected blood clots, blood clots all over her body), DYSPNOEA (Could not breathe,laboring to breathe), POSTURE ABNORMAL (doubled over into lap, doubled over from the waist down), DYSARTHRIA (Had trouble speaking,She could only get a couple words at time before heaving for air), GAIT DISTURBANCE (Could barely walk,holding to the rail), COUGH (Developed a dry cough/hack), BACK PAIN (Developed pain in left side of her back), CHRONIC SINUSITIS (Chronic sinus issues) and ASTHENIA (Did not have the energy to eat) in an 83-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 012M20A and U11620A or 61116) for COVID-19 vaccination.     Concurrent medical conditions included Renal disorder NOS (Dialysis for a kidney issue).   On 04-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 29-Jan-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. In April 2021, the patient experienced COUGH (Developed a dry cough/hack) (seriousness criterion hospitalization) and BACK PAIN (Developed pain in left side of her back) (seriousness criterion hospitalization). On 15-Jul-2021, the patient experienced CARDIAC FAILURE (Heart could not take) (seriousness criteria death and medically significant). On an unknown date, the patient experienced EPILEPSY (Some sort epileptic seizure,seeing like short circuit and getting electrocuted,continued having these violent fits,tried to rip everything off,went through one of those fits.) (seriousness criteria death, hospitalization, disability, medically significant and life threatening), THROMBOSIS (Suspected blood clots, blood clots all over her body) (seriousness criteria hospitalization, disability, medically significant and life threatening), DYSPNOEA (Could not breathe,laboring to breathe) (seriousness criteria hospitalization, disability, medically significant and life threatening), POSTURE ABNORMAL (doubled over into lap, doubled over from the waist down) (seriousness criteria hospitalization, disability and medically significant), DYSARTHRIA (Had trouble speaking,She could only get a couple words at time before heaving for air) (seriousness criteria hospitalization and medically significant), GAIT DISTURBANCE (Could barely walk,holding to the rail) (seriousness criteria hospitalization and disability), CHRONIC SINUSITIS (Chronic sinus issues) (seriousness criterion hospitalization) and ASTHENIA (Did not have the energy to eat) (seriousness criterion hospitalization). The patient was hospitalized for 1 day due to CHRONIC SINUSITIS, DYSARTHRIA, DYSPNOEA, GAIT DISTURBANCE and POSTURE ABNORMAL. The patient died on 15-Jul-2021. The reported cause of death was Epileptic seizure and Heart failure. It is unknown if an autopsy was performed. At the time of death, THROMBOSIS (Suspected blood clots, blood clots all over her body), DYSPNOEA (Could not breathe,laboring to breathe), POSTURE ABNORMAL (doubled over into lap, doubled over from the waist down), DYSARTHRIA (Had trouble speaking,She could only get a couple words at time before heaving for air), GAIT DISTURBANCE (Could barely walk,holding to the rail), COUGH (Developed a dry cough/hack), BACK PAIN (Developed pain in left side of her back), CHRONIC SINUSITIS (Chronic sinus issues) and ASTHENIA (Did not have the energy to eat) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In April 2021, Investigation: results were not provided Results were not provided.         The patients son called to report a serious side effect that his mother experienced following Moderna second dose. In April-2021, developed a dry cough/hack and then started to developed pain in left side of her back. The caller took her to hospital, and they ran a bunch of tests, then the discharged her to follow-up with her doctor. On a Friday, for the follow up appointment when she came out of the office she could barely walk, she holding to the rail. When she got into to car she doubled over into his lap because she could not breathe, and had trouble speaking. She could only get a couple words at time before heaving for air. She continued laboring to breathe and declined going to the hospital citing chronic sinus issues. On the following Sunday morning she called him and asked to be taken to the hospital, she was doubled over from the waist down and he had to call an ambulance to take her to Hospital. She was admitted 1 day and 1 night. The physicians suspected blood clots but did not have the equipment for tests. They transferred other hospital 4-5 days. She was hooked up to every dang machine in there, and had a lot attention. She did not have the energy to eat. The physicians again suspected that she had blood clots all over her body. She went into some sort of epileptic seizure, it was like she was in short circuit and getting electrocuted. She continued having these violent fits where she tried to rip everything off. On 15-Jul-2021, doctors were trying to perform a dialysis for a kidney issue she had, she was sedated for this procedure. She passed away at 9:30 PM that night. The nurse informed that she went through one of those fits, and her heart could not take.  Following these events, a retired nurse at hospital contacted the reporter specifically stated that large group left after this and the mandates and they firmly think this was caused by the Moderna vaccine.  No concomitant medications reported. No treatment details provided.; Sender's Comments: This case concerns a 83-year-old, female patient with relevant medical history of renal disorder, who experienced the unexpected events of Epilepsy, Cardiac failure, Thrombosis, Dyspnea, Posture Abnormal, Dysarthria, Gait Disturbance, Cough, Back Pain, Chronic Sinusitis, and Asthenia. Cough and back pain occurred approximately 3 months after the second dose of mRNA-1273 (Moderna covid-19 vaccine); while other events occurred at unspecified interval. Epilepsy and Cardiac failure resulted in a fatal outcome. The rechallenge was not applicable as events occurred after second dose with fatal outcome. This patient's underlying medical condition remains a contributory factor. The benefit-risk relationship of mRNA-1273 (Moderna covid-19 vaccine) is not affected by this report.; Reported Cause(s) of Death: Epileptic seizure; Heart failure