Severe headache; Blurred vision; Unable to move left eye; Lost vision in left eye due to swelling; Left eyelid is drooping; Left eye pain; the vision loss is most likely temporary; Orbital Maltumor; This is a spontaneous report received from a contactable consumer (Patient). A 43-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), via an unspecified route of administration, administered in Arm Left on 30Apr2021 13:00 (Batch/Lot Number: ER8736; Expiration Date: 31Jul2021)  (at age of 43-year-old) as 1ST DOSE 0.3ML SINGLE for covid-19 immunisation. The patient medical history and concomitant medications were not reported.  The patient previously took Vaccine Tdap and experienced Sore arm, headache, and fever; took Flu shot and experienced Headache, Fever, and gets sick. There was no other vaccine in four weeks. Caller reported that she gets sick each time after she gets the flu shot. The patient experienced severe headache on 01May2021 , blurred vision, unable to move left eye , orbital maltumor, lost vision in left eye due to swelling, and left eyelid is drooping, and left eye pain, all  on May2021 .  The patient underwent lab tests and procedures which included blood glucose: normal on 12May2021, computerised tomogram: normal on 12May2021, magnetic resonance imaging: normal on 12May2021, magnetic resonance imaging: orbital maltumor left eye on 16May2021, multiple sclerosis: normal on 12May2021, myasthenia gravis: normal  on 12May2021, thyroid releasing hormone challenge test: normal on 12May2021 .  Clinical details: Caller reported that she got the first dose of the Covid-19 vaccine on 30Apr2021.  Caller reported that the next day, 01May2021, she had a severe headache.  Caller reported that the headache carried on for almost 3 weeks. Caller reported that she also experienced blurred vision and is unable to move her left eye.  Caller reported that her physicians have run tests and informed her that there is a known side effect of the Covid-19 vaccine where the muscles in the face get attacked. Caller reported that she had a CT, MRI, and blood work performed to rule out everything else.  Caller reported that the severe headache, blurred vision, and inability to move her left eye are a really weird and unusual things to happen and it is coinciding with the Covid-19 vaccine.Caller reported that she has been to the ophthalmologist and neurologist to figure out what's going on.  Severe headache: Caller reported that the pressure behind her eye is causing her headache.  Caller reported that the headache is in the back of her head and eye.  Caller reported that her headache has improved.  Caller reported that her headache is no longer running at a 7 and is now more like a 4. Blurred vision: Caller reported that the blurred vision started about a week and a half after she received the first dose of the Covid-19 vaccine on 30Apr2021.  Caller reported that after 2 weeks, the blurred vision had escalated to where she went to the emergency room. Unable to move left eye:  Caller reported that the inability to move her left eye began about a week and a half after she received the first dose of the Covid-19 vaccine on 30Apr2021. Orbital maltumor: Caller reported that the orbital maltumor is what is restricting the movement in her eye as well as giving her the severe headache and blurred vision.  Caller reported that her physician informed her that it could be a rare side effect of the Covid-19 vaccine. Caller reported that her neurologist did not seem too concerned about it.  Caller reported that she is following up with her neurologist in 2 weeks. Lost vision in eye because of swelling: Caller reported that the vision loss is most likely temporary and that her vision will most likely return after the swelling decreases. Eyelid drooping: Caller reported that her eyelid is drooping slightly more this week than last week.  Caller reported that her drooping eyelid is not very obvious, but it's noticeable when her eyes are closed. Left eye pain: Caller reported that she was trying to move her eye just to see better when the blurred vision began and her eye started hurting if she was looking up or to the left.  Caller reported that the swelling behind her eye has gone down and the pain in her eye has gone down.Caller reported that she was prescribed steroids for the orbital maltumor and swelling in her eye.  Caller reported that she has been on steroids for 3 days and that her eye is improving. Investigations: Caller reported that bloodwork was performed in order to determine what was causing her symptoms.  Caller reported that she was tested for myasthenia gravis and multiple sclerosis.  Caller reported that her thyroid and glucose level were also checked.  Caller reported that all of her blood work came back fine.  events Blurred vision, unable to move left eye, orbital maltumor require a visit to: Emergency Room  and Physician Office. Caller reported that blood work was drawn to test her thyroid and blood glucose levels as well as to check for myasthenia gravis and multiple sclerosis.  Caller reported that the blood work all came back fine. The outcome of events were resolving.