INTENSE PAIN; DIFFICULTY THINKING STRAIGHT; INTERMITTENT, INVOLUNTARY MOVEMENT OF LEFT FINGERS; SPELLS OF STUTTERING; SLURRED SPEECH 2-3 TIMES A DAY; DIFFICULTY SEEING; MIGRAINE "WORST PAIN IN LIFE"; RINGING IN EARS; NON-CONTAGIOUS MENINGITIS / BRAIN SWELLING / UNABLE TO MOVE NECK TO THE LEFT / STIFF NECK RADIATED TO SHOULDERS AND LEFT ARM AT INJECTION SITE / STIFF NECK TO THE LEFT SIDE; LIME DISEASE / CHILLS / MUSCLE ACHE / MILD FLU LIKE SYMPTOMS; HEADACHE; TIRED/ FATIGUE; COULD NOT SLEEP ALL NIGHT; KNEE SWELLED UP; LEFT KNEE PAIN; SPINAL CORD SHIFTING FROM BASE OF SKULL TO TAILBONE- POPPING AND CRACKING; This spontaneous report received from a patient concerned a 43 year old male. The patient's height, and weight were not reported. The patient's concurrent conditions included high blood pressure and penicillin allergy at the time of vaccination. The patient received covid-19 vaccine ad26.cov2.s (suspension for injection, route of admin not reported, batch number: 1805022 and expiry: unknown) dose was not reported with frequency 1 total administered on 25-MAR-2021 at 16:00 to left arm for prophylactic vaccination. No concomitant medications were reported.  On 25-MAR-2021, the patient did not have any side effects initially and he was fine after vaccination and suddenly he felt tired an hour after arriving home, also could not be to sleep all night, mild flu-like symptoms including chills, muscle aches, fatigue and a headache. He took ibuprofen 200 mg via oral route (frequency unknown) for headache or pain. On 26-MAR-2021, the patient experienced headache again. On 02-APR-2021, the patient experienced headache which continued to get worse, brain swelling, non-contagious meningitis, lime disease (Lyme disease), migraine "worst pain in his life", difficulty seeing, ringing in ears. Then, he took more ibuprofen (frequency unknown) as the migraine was unbearable for him and had mild relief. The patient went to the hospital and was admitted on 02-APR-2021. At hospital he received morphine (indication unknown). On the same day, the laboratory testing or data of patient included CT scan reported as brain swelling reduced in size and spinal tap reported as unknown chemical found, positive for lime disease and meningitis. Laboratory testing revealed the meningitis of patient was non-contagious. The patient started on blood thinners and antibiotics (drugs name unknown). The patient got followed-up with (Centers for Disease Control and Prevention) CDC disease specialist who said that it could not be clearly revealed whether it was related to the vaccine or not. On 05-APR-2021, the patient experienced difficulty thinking straight, intermittent, involuntary movement of left fingers, spells of stuttering, slurred speech. The patient hospitalized for 4 days and got discharged from hospital on 05-APR-2021 at 20:00. On the night of 06-APR-2021, it was reported that in the middle of the night the patient woke-up at 01:00 as his spinal cord was shifting from base of skull to the tailbone, it was popping and cracking, no pain, just moving. It was gone when he work-up that morning. On 08-APR-2021 at morning, the patient experienced stiff neck to the left side / stiff neck radiated to shoulders and left arm at injection site as unable to move neck to the left side and the stiff neck got progressively worse each day and by 09-APR-2021, the stiff neck was more severe and radiated to the shoulders and to the left arm where he received his vaccine, not the right side, unable to move neck to the left side. However, this lasted until 13-APR-2021. On 26-MAY-2021, the patient woke up with pain and swelling in the left knee. On an unspecified date, the patient experienced intense pain. Treatment medications (dates unspecified) included: ibuprofen several times, morphine, antibiotics and blood thinners. The action taken with covid-19 vaccine ad26.cov2.s was not applicable. The patient recovered from lime disease / chills / muscle ache / mild flu like symptoms, migraine "worst pain in life", difficulty seeing, and ringing in ears on 05-APR-2021, non-contagious meningitis / brain swelling / unable to move neck to the left / stiff neck radiated to shoulders and left arm at injection site / stiff neck to the left side, spinal cord shifting from base of skull to tailbone- popping and cracking on 07-APR-2021 and knee swelled up, and left knee pain on 30-JUN-2021, had not recovered from tired/ fatigue, headache, spells of stuttering, intermittent, involuntary movement of left fingers, difficulty thinking straight, and slurred speech 2-3 times a day, and the outcome of could not sleep all night and intense pain was not reported. This report was serious (Hospitalization Caused / Prolonged, and Other Medically Important Condition).; Sender's Comments: V0: 20210718928-covid-19 vaccine ad26.cov2.s-spinal cord shifting from base of skull to tailbone- popping and cracking ;  non-contagious meningitis / brain swelling / unable to move neck to the left / stiff neck radiated to shoulders and left arm at injection site / stiff neck to the left side;  lime disease / chills / muscle ache / mild flu like symptoms; difficulty thinking straight; migraine "worst pain in life";  ringing in ears; intermittent, involuntary movement of left fingers; spells of stuttering;  slurred speech 2-3 times a day;  difficulty seeing;  intense pain; could not sleep all night. 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). 20210718928-covid-19 vaccine ad26.cov2.s-headache; tired/ fatigue. This event(s) is labeled per RSI and is therefore considered potentially related.