couldn't even function; I have been having really bad breathing problem; Loss of appetite; I just got bruised; double vision; couldn't stand; couldn't even focus; her eyes could not focus; could not see to drive, all of sudden my vision was gone away; diarrhea; blurred vision; vertigo; continuous dizziness; This is a spontaneous report from a contactable consumer. A 53-year-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection), dose 2 via an unspecified route of administration on 26Apr2021 (at the age of 52 years-old) (Batch/Lot Number: EW0169; Expiration Date: Aug2021) as 2ND DOSE, SINGLE for covid-19 immunisation. Medical history included syncope Unspecified syncope, migraine Chronic Migraines, concussion history of severe chronic migraines and unspecified syncope due to have a concussion 3 times. The patient received first dose BNT162B2 for COVID-19 immunization on 06Apr2021 at the age of 52 years old. Caller said that since the second dose she has diarrhea that is coming and going, but she has been having it for 2 weeks and is treating it with Imodium AD. She has been having blurred vision, vertigo, and dizziness continuously. She has never had this before. She said that within an hour of getting the second dose, she was taking her dog for a walk and only made it a block before she had to come home because she thought she was going to fall. She states on Mothers Day she felt like she could not get her bearings and states it was "very, very scary." She said that she cant even walk down her staircase or drive her vehicle. Consumer further stated, I have been having a loss of appetite too not feverish or anything and you know I had the shot, I had no reaction there. I just got bruised and I had no hurt or anything. I have been having symptoms. I had several symptoms from Pfizer but the second vaccine I had been having sever symptoms, they haven't gone away. I was vaccinated for second vaccination on second dose was on 26Apr2021. I am pulling it on my screen here because I have a V-safe. I have been having really bad breathing problem. I have brain situation that my neurology check. I have underlying medical conditions. My pulmonologist asked me to get the Pfizer so that's what I did. I had the first dose 06Apr2021, I had the second dose 26Apr2021. Now basically just the second dose, I started having visions problem really bad and dizziness, it's kind of little vertigo. I had severe diarrhea for at least I guess I am still having it little bit. So it was really severe for about a week or so. But I have it, I am having it still couple of days, 3 weeks still, 3 and a half days and week. The vision on modern days I had like double vision and dizziness and I got vertigo, the whole day. So my brother left with my granddaughter. I had to hold on to the banished couldn't stand. I couldn't even focus. I have unspecified think to the give more and I have a severe chronic migraine (Intent: History) since I am 4 years old but I have never had this happened to me until after I took the Pfizer second vaccine. The day that I took the Pfizer second vaccine, I went with my dog outside I only was able to walk a block and a half and then I had to walk back home because I felt dizzy. Now this is about an hour after I took the second vaccine. Also the next day I drove my car to the park, this is about maybe 10 minutes away and I was getting home run around the  park and about an hour after that I had going to car and and surrounded and could not even get my barring's. She states the next day she took her dog to the dog park and experienced the same thing so she had to lay down in her car and states she "couldn't even function." She states that when she was driving later, she states her eyes could not focus and she could not see to drive. As she was driving home, all of sudden my vision was gone away, from what happen was is I had to call my son. Then I started to cry because I couldn't able to see. Now this has been continuing since the vaccine. Therapeutic measures were taken as a result of diarrhea. The outcome of the events was not recovered.  No follow-up attempts are needed; information about lot/batch number cannot be obtained.