Kidneys seems like they are shutting down; my kidneys ache; Kidneys hurt, not function like I think they should; I am just sweating; night sweats, sweating profusely/ night sweats and it's waking me up; my kidneys ache; Kidneys hurt, not function like I think they should/ Kidneys are hurting; that's my kidneys but inside my back where the kidney region is, there is, they ache/ My back is hurting; I am the one not feeling well; This is a spontaneous report from a contactable consumer (patient).  A 51-year-old patient of unspecified gender received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, formulation solution for injection, Batch/LOT number: Not reported), via unspecified route of administration on unspecified date as dose number unknown, single for COVID-19 immunization. Patient medical history and concomitant medications not reported. It was reported that patient received the Pfizer shot (Unspecified vaccine) the other day, on the 11th, and patient kidneys, well, first of all patient had been having like random outbreaks like where patient was just sweating, and never done that before in patients life. Patient was assuming that's patients kidneys but inside patient back where the kidney region was, there was, they ache, patient kidneys ache and 'don't do the work'. When probed if consumer wanted to report the side effects or have some medical query for the same, Consumer stated, So the question was, was the intent to make patient kidneys hurt meaning that's, that's how it works, making patient kidneys hurt, not function like consumer think they should. When patient queried for if the kidney problem started after taking the shot, Consumer stated, "No, never in patient life, and informed that patient was 51-year-old and patient never necessarily go to a doctor but now consumer was hurting there. Patient reported that patient still had not attended doctor for it because this was very safe. Consumer stated patient kidneys seems like they are shutting down, so thank you, thank you for doing this. And the night sweats and it's waking patient up, patient had never had this before and even sometimes it happens in the day like but patient was sweating profusely like patient had ran a marathon that patient actually setting down. It was reported that patient was assume that means patient was not going to get COVID, patient may have for kidneys shut down and had the sweat but at least patient dint had COVID. Consumer event reported that, it's safe and it's approved by the FDA, so patient couldn't, can't be calling and complaining because patient can only be calling saying it's working as nobody would call to complaint something that was safe, so but it's just unusual that this happened. Patient had night sweat and then sweating at daytime and it was unusual. It was like, patient was sweating but not moving, Like was not running away, not exercising. It just, If patient did that, it just, patient woke up and took hand and wipe the sweat and then patients kidneys are hurting both and patient stated that kidneys are never hurt like before. It was reported that patient back was hurting, where patient kidneys are located, Patient reported that of having sweat and never sweat before. Reporter stated that patient was outside. Patient can't even face family because patient feel like this. It was unfair to them. It was reported that right now, patient was just standing outside in shame and just feel shameful right now because, the way, patient feel, like patient was not doing something good and may be it will be good for them in a long run. It may wise them up but for patient, it was not good because patient was the one not feeling well. Reported stated that didn't want to call Medical because that's scares, That, If this, It would be as, If, patient having issues. Patient reported that don't want to talk to medical. Outcome of all the events was unknown.  This lot number for the vaccine, [BNT162B2] was not provided and will be requested during follow-up.