PLATELET COUNT WENT DOWN TO 96; NEUROLOGICAL SYMPTOMS; ANXIETY; DIMINISHED QUALITY OF LIFE; LOSING INTEREST IN LIFE; DIFFICULTY IN WALKING/ DIFFICULTY GETTING OUT OF THE CAR; GENERALIZED HEAVY MUSCLE PAIN ALL OVER THE BODY ESPECIALLY ON ARMS AND HANDS; FEELING OF ELECTRIC SHOCK ON LEFT SIDE OF BODY ESPECIALLY UNDERNEATH THE LEFT FEET AND LEFT INDEX FINGER; SEVERE HEADACHE MOSTLY ON LEFT SIDE AND TOP PART OF HEAD; This spontaneous report received from a patient concerned a 49 year old male. The patient's height, and weight were not reported. The patient's concurrent conditions included high blood pressure, pre-diabetes which the patient controls with exercise and diet and no medications, alcohol user (had been drinking vodka for the past few weeks), and non-smoker. The patient had no known allergies and no history of 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: 1805029 expiry: UNKNOWN) dose was not reported, 1 total administered to left arm on 27-MAR-2021 for prophylactic vaccination. Concomitant medications included olmesartan for blood pressure.  On an unspecified date before vaccination the laboratory data (dates unspecified) included: Platelet count (NR: not provided) 160. On 18-APR-2021 (3 weeks after vaccination), the patient experienced severe headache mostly on left side and top part of head and ended up in the emergency room at 01:00 AM in the morning. In the emergency room, the patient had a brain scan and he was told that the brain scan showed no blood clot and that his platelet counts were good. After these tests the patient was sent back home. On 27-JUN-2021 (for the past 2 weeks prior to this report), the patient experienced generalized heavy muscle pain all over the body especially on arms and hands and difficulty in walking and getting out of the car. On an unspecified date in JUN-2021, the patient experienced feeling of electric shock on left side of body especially underneath the left feet and left index finger. On an unspecified date, patient reported that his platelet count went down to 96 after the vaccination, had anxiety and had been drinking vodka every night because his quality of life was diminished and he refused to go back to the emergency room. The patient was irritated and he was losing interest in life. The patient had not experienced any fever or nausea. The patient had scheduled an appointment with the physician on 26-JUL-2021 due to his concern about the neurological symptoms. It was reported that, the emergency services were called and informed about the patient. The action taken with covid-19 vaccine ad26.cov2.s was not applicable. The patient had not recovered from severe headache mostly on left side and top part of head, platelet count went down to 96, generalized heavy muscle pain all over the body especially on arms and hands, difficulty in walking/ difficulty getting out of the car, anxiety, losing interest in life, feeling of electric shock on left side of body especially underneath the left feet and left index finger, diminished quality of life, and neurological symptoms. This report was serious (Other Medically Important Condition).; Sender's Comments: V0: 20210738395-Covid-19 vaccine ad26.cov2.s-Platelet count went down to 96. 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