dealing with this dehydration through the night and probably for days; Soreness from his arm/ Arm pain; Felt like he had to urinate a lot; Mild to moderate headache; waking up a lot during the night to use the bathroom several times; feeling some kidney pain, he was experiencing kidney pain, bad kidney pain; tiny little bit of warm sensation in my heart; develop a headache which was kind of like a hangover headache; just got tired; little bit of chills and body ache; little bit of chills and body ache; little bit of foggy headedness; the diuresis was probably the cause behind the headache; This is a spontaneous report Pfizer from a contactable consumer (patient). A male patient of an unspecified age reported for himself that he received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Batch/Lot Number: FC3184; Expiration Date: Oct2021), via an unspecified route of administration on 05Sep2021 at 15:30 PM as DOSE 1, SINGLE for covid-19 immunisation. Medical history included allergy sensitive person from an unknown date and unknown if ongoing (Event verbatim: allergy sensitive person little more hyper allergic to things and so I have that type of tendency), covid-19 from Feb2020 to an unknown date (had COVID back in last year Feb. I can down with COVID, never officially diagnosed because there wasn't very good testing method but I could tell I had the respiratory pump then I was shut down pretty hard for about a month), covid-19 from May2021 to an unknown date (I got COVID and I got it even the worse than I had it in the first time I did not get admitted to the hospital but I did have to go in that second time it hit me gastro-intestinally in the lungs again and also very much in the kidneys. And I had this site burning the sunburn type feeling for properly about week and a half or two weeks and when they diagnosed with COVID then I formally tested and I did test Positive so that was through May). The patient concomitant medications were not reported. Additional context stated, The patient was a doctor and was calling about covid-19 vaccine for himself. This sunday, on 05Sep2021, he received the first dose of the Pfizer COVID-19 Vaccine at 15:30 in the afternoon and about 5 hours later he started experiencing soreness from his arm, he talking big deal with that and then 8 hours after the first dose, he said it felt like he had to urinate a lot and so he started drinking more water and then went to bed and later experienced mild to moderate headache throughout the night and was waking up a lot during the night to use the bathroom several times. The patient took some Tylenol and had been taking an aspirin and now he was feeling some kidney pain. So, he took another Tylenol and he said even now he still has a 'doe ache' and he did have some questions too because he had COVID back in last year Feb(history) and then he said he was hit bad for about a month and then he had COVID again this past May and now he was questioning if he should receive the second dose after 21 days after the first? The reporter stated as, 'So done the last week, I got to about 4 months and this last Sunday I decided to vaccinate and I did the Pfizer shot and it was interesting and I did it at 15:30 in the afternoon. Five hour and I had the no problems, just a tiny little bit of warm sensation in my heart but like a little like there was a little hot water in there and then I, at about 5 hours I started getting the arm pain and that wasn' a big deal and then at 8 hours I noticed I started to have to urinate more and now it's like wow, this is reminding me a little bit of what I went to look this second COVID the dehydration, the excessive dehydration. So this time I am going to be smarter, I am going to rest and I am going to hydrate very vigorously. So I drink some water went to bed and then I develop a headache which was kind of like a hangover headache from dehydration because throughout the night I have to wake up and go urinate which was compulsory for me and I figured okay so I am going to be dealing with this dehydration through the night and probably for days, so just keep hydrating and will see what the body is doing, flushing this out or something else is going on but just (voice not clear) well this is a mild (voice not clear), so I went about the whole day like that just laying bed truly rested and that was the smartest thing to do and then I just got tired, I got a little bit of chills and body ache and this is all to be expected and then I did take a Tylenol with an aspirin (treatment) and it helped me relieve in arm pain and all the headache pain and everything and I was able to sleep. It gave me a good 6-7 or 7-8 hours of sleep. And then I woke up with really bad kidney pain like someone punched me in my kidneys on both sides and I am like god this really hurts bad and then I started let'ee what it does if it's kind of go down and about 3 hours after and it just didn' improve, so I was like I am going to do another Tylenol and I am not taking plenty of them so then with took Tylenol its took away all the pain and I was able to sleep and then the next day I had the 'doe ache'  my kidneys and you know little bit of foggy headedness and thinks to be expected. So I talked couple of my patients about and couple other people and I thought yeah it wasn't that bad I had the same type symptoms that's why the kidney pain hurt that bad and the diuresis was probably the cause behind the headache, but when I was telling them they said wow that sounds like how I felt like on my second dose (further clarification unknown hence split not made) and I was like interesting this was my first dose. So the reason I am calling you guys is I kind of want to get you guidance because if I felt like this on my first dose and it's what several people have said how they felt on their second. I am wondering should I be very practice a little more reservation in getting the second dose? Like could I really over amplifying my immune system like historically I would say I was a very allergy sensitive person growing up, that I would be a little more hyper allergic to things and so I have that type of tendency that I am wondering like from what I am telling me do I risk that I can cause like some immuno damage on the second dose if I don't give it enough time or (incomplete sentence)'. The patient underwent lab tests and procedures which included sars-cov-2 test: positive on May2021 (diagnosed with COVID then I formally tested and I did test Positive so that was through May). Therapeutic measures were taken as a result of soreness from his arm, mild to moderate headache, waking up a lot during the night to use the bathroom several times, feeling some kidney pain, develop a headache, hangover and little bit of chills and body ache. The outcome of the events soreness from his arm, mild to moderate headache, waking up a lot during the night to use the bathroom several times was recovered on an unspecified date in Sep2021; event feeling some kidney pain was not recovered and rest of the events was unknown.