felt really drugged up; felt really drugged up; Loss of vision; Dizziness; Nausea; Headache; Vomiting; This is a spontaneous report from a contactable consumer or other non HCP. A 54-years-old female patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 MRNA VACCINE, Solution for injection, Batch/Lot Number: EP7533; Expiration Date: 31Jul2021), via an unspecified route of administration, administered in Arm Left on 06Apr2021 (at the age of 54-years-old) as dose 1, single for covid-19 immunisation. Medical history included Kidney cancer from 2020 to an unknown date Verbatim: Kidney cancer, medical device she has implanted (Medtronic stimulator device, since about 8-9 years). There were no concomitant medications. The patient had no history of previous immunization with the Pfizer vaccine considered as suspect. There were no Vaccines Administered on Same Date of the Pfizer Suspect. The patient had no Prior Vaccinations (within 4 weeks). On 06Apr2021 the patient experienced felt really drugged up. On Apr2021 the patient experienced loss of vision, dizziness, nausea, headache and vomiting. The patient was hospitalised for all the events from 14Apr to 15Apr2021. The event loss of vision was captured as serious (hospitalization, disability, medically significant), rest of the events were captured as serious (hospitalization). The reporter stated that she had to complaint about it, she ended up in the hospital after both doses. First dose- 06Apr2021, given around 8-9am, in the left arm, Lot- EP7533, Expiry-31Jul2021. Time the Vaccination Was Given: 8-9am, second dose- 27apr2021, given around 8-9am, in the left arm, Lot- ER8735, Expiry-31Jul2021. She has no NDC for either dose. It was also noted the expiry is the same for both doses. After the first dose she was hospitalized on 14Apr2021. She explains that right after getting the first dose, as soon as starting to drive home she felt really drugged up, like she was on street drugs. This lasted most of the day and she went home and went to sleep. The caller goes on to explain she stayed that way until she went to the hospital on 14Apr2021.The admitting diagnoses is unknown but she had dizziness, nausea, headache, loss of vision, and vomiting. She was discharged on 15Apr2021. The second hospitalization was on 28Apr2021 with an admitting diagnosis of stroke. She was released on 30Apr2021. Treatment- for both visits she had a CT scan and chest x-ray and EKG, the results were all normal. For the second visit, she has an EEG and this was normal. The doctor ordered an MRI but she doesnt know the results for that. She then explains she doesnt know if she had a chest x-ray on the second visit. She was referred to a neurologist. They were thinking this was a possible a brain aneurysm. They wanted to do other tests but due to a medical device she has implanted, a Medtronic stimulator device, it couldnt be done. She confirms she has had this device for years, about 8-9 years. It is described as like a pace maker but not for her heart but for other things. The adverse events required visit to the emergency room. The patient underwent lab tests and procedures which included chest x-ray: normal on Apr2021, computerised tomogram: normal on Apr2021, electrocardiogram: normal on Apr2021. The outcome of all the events was unknown. Follow-up attempts are completed. No further information is expected.