Used the bathroom a lot more than usual; Peeing a lot more than she ever had; Headache; Dizziness; When she had the shot, blood squirted out of her arm; Dehydrated; Shortness of breath; This is a spontaneous report from a contactable consumer (Patient herself).  A 65-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Lot Number: EM9809), via an unspecified route of administration, administered in Arm Right on 06Feb2021 (at the age of 65-years-old) as dose 1, single for Covid-19 immunisation. The patient's medical history included She was really overweight, back surgery was years ago, like 2008, headache and was taking a series of shots before and had the same kind of headache, she called her doctor and he said they probably punctured her spinal cord and blood thinner. No other history was reported. The patient's concomitant medication included aspirin (ACETYLSALICYLIC ACID), started taking years ago. She forgot to take it on morning on the day of report, ergocalciferol (VITAMIN D), vitamin b complex (VITAMIN B), cod-liver oil (FISH OIL) and unspecified blood pressure medication. When she had the shot on 06Feb2021, blood squirted out of her arm, and she asked if it was her vein, she knows because she had back surgery and was taking a series of shots before and had the same kind of headache, at that time she called her doctor and he said they probably punctured her spinal cord, and don't worry, she would have the surgery the next day and fix it. Can they puncture a vein in the arm. On 06Feb2021 after shot, when she sat for 15 minutes she was fine, then later on, she was home and had this little headache, almost like headache when dehydrated. It was not continually. On 07Feb2021 (Sunday) afternoon she used the bathroom a lot more than usual, she was peeing a lot more than she ever had. The headache was not continual it comes and goes. It was a like dizziness headache, she asked was this normal. She was sleeping a little bit later. She took vitamin B, Vitamin D and fish oil and a baby aspirin but she had not taken them for a few nights prior to the shot. She had her second shot scheduled for 27Feb2021, should she take it again. Her husband took it as well but he was not having any issues. In Jan2021, she felt like she was having a shortness of breath. She had not taken it prior the vaccine. How long did they have the headaches for (duration). It was not as bad as it was, and she was not using the bathroom as much. She was looking to get the shot. States she was really overweight. Primary care doctor doesn't know she had the shot. Headache outcome: not continual, not all day not like she wakes up with it, it comes and goes, she has taken an Aleve, she doesn't know if she was supposed to, she usually takes two, but just took one. She was not going to the bathroom as much, Sunday it was every 5 minutes going to the bathroom and she said maybe something was disintegrating fat out of her from the shot, it was a lot. She takes blood pressure medication and takes an Aspirin, not every morning, she did this morning, but a couple days before, she didn't, as they said don't take no kind of blood thinner. She takes Vitamins. The outcome of the events headache and dizziness was not resolved. The outcome of the event used the bathroom a lot more than usual; peeing a lot more than she ever had was resolving. The outcome of the events shortness of breath, dehydrated and when she had the shot, blood squirted out of her arm was unknown.  Follow-up attempts are completed. No further information is expected.