severe headache; I kept getting blurred vision; dizzy; extreme short pain in the back of my head on the base of my skull on my neck./I am having the sharp shooting pain in the back of my head; feels weird.; This is a spontaneous report received from a contactable reporter(s) (Other HCP). The reporter is the patient.  A 30 year-old female patient received bnt162b2 (BNT162B2), intramuscular, administered in deltoid left, administration date 30Nov2021 18:30 (Lot number: FJ8762) at the age of 30 years as dose 1, single for covid-19 immunisation. The patient's relevant medical history was not reported. Concomitant medication(s) included: SPIRONOLACTONE taken for acne. Vaccination history included: Flu (single dose), administration date: 11Nov2021; Hepatitis a shot (single dose), administration date: 11Nov2021. The following information was reported: HEADACHE (non-serious) with onset 01Dec2021, outcome "not recovered", described as "severe headache"; VISION BLURRED (non-serious) with onset 01Dec2021, outcome "not recovered", described as "I kept getting blurred vision"; DIZZINESS (non-serious) with onset 01Dec2021, outcome "not recovered", described as "dizzy"; BONE PAIN (non-serious) with onset 01Dec2021, outcome "not recovered", described as "extreme short pain in the back of my head on the base of my skull on my neck./I am having the sharp shooting pain in the back of my head"; FEELING ABNORMAL (non-serious) with onset 01Dec2021, outcome "not recovered", described as "feels weird.". The events "severe headache", "i kept getting blurred vision", "dizzy", "extreme short pain in the back of my head on the base of my skull on my neck./i am having the sharp shooting pain in the back of my head" and "feels weird." were evaluated at the emergency room visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of headache, dizziness, bone pain, feeling abnormal. Therapeutic measures were not taken as a result of vision blurred.  Additional information: the patient got her first dose of the Pfizer Covid-19 vaccine on 30Nov2021 and then next morning, patient got up approximately 5 o'clock in the afternoon and then the next morning woke up with a severe headache and throughout the day and she kept getting blurred vision and getting dizzy and that just continued on everyday having severe headache and the blurred vision and just not feeling right in her head. In her head, it felt weird. The patient ended up going to the emergency room on December 5th because she was worried about a possible blood clot or something the blurred vision and the severe headache and was having like extreme short pain in the back of head on the base of skull on her neck. They did an MRI and they said everything was normal and they took bloodwork and that was normal. The next day, The patient was still having the blurred vision and the headache. She was more concerned about the vision. The patient stated that something happening to her eyes but she went and saw an Optometrist and they did an eye exam and optometrist said that her eyes were healthy. On 10Dec2021, the patient went to saw primary care doctor and she just told her to take some vitamins and drink some Gatorade. The patient went to neurologist on that same day in the afternoon and he looked in her eyes and did like a basic neuro exam and was suggested to see an ophthalmologist for her eye. The patient was still having headaches, but they were not as severe as they were initially in the first few days and her vision was still not right. It's just general blurriness specially in her right eye on the right side about the same side of the head where she was having the sharp shooting pain in the back of her head and then at night, when she was driving all the traffic lights were like blurry and they have like rays coming from them. The patient was still having these problem for 12 days now and she took one other medication (spironolactone 25 Mg) and she took two pills for acne like skin related problems. The patient received Tylenol, ibuprofen and Advil for headache and have really helped for blurred vision. The patient took birth control pill (Mono-Linyah) as concomitant medication.  No follow-up attempts are possible. No further information is expected.