VACCINE SPEEDED UP ALZHEIMERS; NOT EATING WELL; LOOSING WEIGHT (WENT DOWN TO 66 LBS); PNEUMONIA; COULD NOT WALK; DIAGNOSED WITH WATER IN BRAIN; CUTS IN HEAD/CUT IN FOREHEAD; MULTIPLE FALLS/FELL 5 TIMES/FELL IN THE NURSING HOME; BLOOD CLOTS FROM KNEE DOWN/BLOOD CLOT IN LEG (PROBABLY RIGHT LEG); This spontaneous report received from a consumer concerned a 77 year old female. The patient's weight was 76 pounds, and height was not reported. The patient's past medical history included: stroke, and thyroid, and concurrent conditions included: alzheimer's dementia, advance rheumatoid arthritis, memory loss, cigarette smoker, no alcohol use, and sulfa allergy, and other pre-existing medical conditions included: The patient had no drug abuse or illicit drug usage. The patient received covid-19 vaccine ad26.cov2.s (suspension for injection, route of admin not reported, batch number: 1805025 and expiry: 25-MAY-2021) dose was not reported, 1 total administered on 12-MAR-2021 for prophylactic vaccination. Concomitant medications included  Levothyroxine for thyroid disorder. On JUN-2021 (3 months after receiving the vaccine), the patient experienced multiple falls and could not walk, patient would take little tiny steps then falls. The patient was misdiagnosed with thyroid problems for 2 weeks then admitted to hospital on 13-JUN-2021 and stayed for 2 days, then spent two and half weeks in for walking but was still falling and reported rehab was unsuccessful. The patient had direct nursing care because she was not making any progress, the patient then had home therapy which showed significant progress. The patient was not eating well when she was at the hospital in JUN-2021 and was loosing weight (went down to 66 pounds) and experienced stomach shrunk, the patient was on a chopped up diet and was prescribed a pill to increase her apatite but they could not afford it, then when patient went to home (date unspecified), started eating better, smaller more frequent meals and did not need to have a feeding tube and gained back 10lbs. The patient also experienced slurred speech (date unspecified) and had speech therapy with home therapy.  On 04-JUL-2021, the patient fell 5 times and had cuts in head. On 05-JUL-2021, the patient went to the emergency room and admitted and stayed in the hospital for 11 days. During the admission on 08-JUL-2021, the patient was diagnosed with water in brain by neurologist. The patient also fell in the nursing home on 16-JUL-2021 and on 31-JUL-2021. On 11-AUG-2021, the neurologist wrote a letter to patient stating that patient can no longer make health or financial decisions or drive, and was also prescribed Donepezil and another memory medication for the signs of memory problems. The patient was performed with lumbar puncture to drain water from brain by surgeon (date unspecified) but it was reported that, water keeps coming back, the reporter was told a shunt is required to prevent water from coming, back but a specialist advised against the procedure and did not recommend the shunt as that water acts like a cushion for the brain inside the skull and the shunt would cause blood clots especially with vaccine, with complications the brain would bleed, and could lead to death. The reporter reported that (date unspecified) , the patient has to wear diapers for urination secondary to Alzheimer's and reported vaccine speeded up the process of aging/vaccine speeded up Alzheimer's. On 01-NOV-2021, the patient admitted to hospital with a diagnosis of pneumonia and was discharged on 06-NOV-2021 with Mucinex (guaifenesin) and recovered around 13-NOV-2021. On 13-NOV-2021, the patient noticed that the right leg was swollen and patient taken to the emergency room and was performed with an ultrasound and diagnosed with blood clots from knee down. The patient was not admitted but discharged with 30 days supply of Eliquis (apixaban) and a prescription of Eliquis was 10 mg one in the morning and one in the evening for 6 month. Laboratory data included: Diagnostic ultrasound (NR: not provided) Not reported. The reporter also reported that (date unspecified), the patient memory is coming back about 90%, eats better, still leans backsword so can fall anytime, and speech still slurred. On an unspecified date, the patient experienced confusion. The action taken with covid-19 vaccine ad26.cov2.s was not applicable. The patient recovered from pneumonia on 13-NOV-2021, was recovering from multiple falls/fell 5 times/fell in the nursing home, could not walk, not eating well, and loosing weight (went down to 66 lbs), had not recovered from diagnosed with water in brain, and blood clots from knee down/blood clot in leg (probably right leg), and the outcome of vaccine speeded up alzheimer's and cuts in head/cut in forehead was not reported. This report was serious (Hospitalization Caused / Prolonged, and Other Medically Important Condition).; Sender's Comments: V0: 20220154205-COVID-19 VACCINE AD26.COV2.S- Pneumonia, diagnosed with water in brain, blood clots from knee down/blood clot in leg (probably right leg), multiple falls/fell 5 times/fell in the nursing home, cuts in head/cut in forehead, could not walk, not eating well, loosing weight (went down to 66 lbs), stomach shrunk. This event(s) is considered unassessable. The event(s) has a compatible/suggestive temporal relationship, is unlabeled, and has unknown scientific plausibility. There is no information on any other factors potentially associated with the event(s).  20220154205-COVID-19 VACCINE AD26.COV2.S-vaccine speeded up Alzheimer's. This event(s) is considered not related. The event(s) has a compatible/suggestive temporal relationship, is unlabeled, and has unknown scientific plausibility. There are other factors more likely to be associated with the event(s) than the drug. Specifically: MEDICAL HISTORY