LEFT SIDE OF TONGUE FEELS LAZY AND LINGERING; UNABLE TO PRODUCE WORDS OUT OF MOUTH; NOT ABLE TO SEE DUE TO SWOLLEN EYE; LEFT EYE ALMOST SWOLLEN SHUT; RIGHT SIDE BACK PAIN/KIDNEY-MID LOW BACK RIGHT SIDE; INNER THIGHS BOTH VEINS POPPING OUT; ANAPHYLACTIC SIDE EFFECT; LEFT EYE FELT NUMB/ LEFT EYE PIERCING; HEADACHE; FEEL WEIRD; This spontaneous report received from a patient concerned a 43-year-old female. The patient's height, and weight were not reported. The patient's concurrent conditions included penicillin allergy (itchy throat/swelling), and doxycycline allergy (throat swells shut and marbles in there). The patient was previously treated with escitalopram oxalate (Lexapro 20mg). The patient was not pregnant at the time of reporting. The patient received covid-19 vaccine ad26.cov2.s (suspension for injection, route of admin not reported, batch number: 203A21A expiry: UNKNOWN) dose was not reported,1 total administered on 09-APR-2021 15:30:00 on left deltoid for prophylactic vaccination. No concomitant medications were reported.  It was reported that after vaccination on 9-APR-2021, the patient immediately got headache but her left eye felt numb. She waited 30 minute because she had anaphylactic side effects and it felt really weird. The headache and left eye felt numb/left eye piercing while she was driving back (from vaccination center) which lasted for hour and half (short lived and resolved). On 11-APR-2021 she experienced right back pain (that radiates) which lasted for about five days. After that her inner thigh veins all got bright red for 2 days (only inner thigh nowhere else) and she thought she had something on her and tried wiping it off. On 16-APR-2021, she went to the doctor it was about one week from she received the shot, her left eye was swollen almost shut and that swelling lasted about five days. She was not able to see out of her eyes. She was not able to produce a word which was kind of weird for her. After that, the side effect she had, was her left side of tongue felt lazy and was lingering. She went to the doctor 3 days later news of clot came out doctor said those were the side effect of Janssen COVID-19 vaccine and there was nothing to worry about. She was trying to figure out why her eye was so big and performed D-dimer test which came back normal. She attempted Benadryl for 2 days did nothing but made her tired and she stopped taking it. She thought may be those were allergies at that time. She used an ice pack on her eye, so that swelling would go down a little. There was no discharge from her eye it was just swollen. In APR- 2021, Laboratory data included: Fibrin D dimer (NR: not provided) as Normal. Treatment medications (dates unspecified) included: diphenhydramine hydrochloride (Benadryl). The action taken with covid-19 vaccine ad26.cov2.s was not applicable. The patient recovered from left eye felt numb/left eye piercing, and headache on 09-APR-2021, right side back pain/kidney-mid low back right side on 16-APR-2021, inner thighs both veins popping out on 13-APR-2021, and left eye almost swollen shut (not able to see due to swollen eye) on 21-APR-2021, had not recovered from left side of tongue feels lazy and lingering, and unable to produce words out of mouth, and the outcome of anaphylactic side effect, feel weird was not reported. This report was serious (Other Medically Important Condition).; Sender's Comments: V0: 20210624549-COVID-19 VACCINE AD26.COV2.S-Anaphylactic reaction. This event is labeled per RSI and is therefore considered potentially related.