I got like rapid breathing; the short breathing, what it was; I get like very tired and breathing different than before.; I start getting very low pressure, blood pressure under 100 and under 50, 40 some for no reason until now.; I cannot sleep because I hear my heart beating; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A patient (no qualifiers provided) received BNT162b2 (BNT162B2), on 16Jan2021 as dose 1, single (Lot number: EL8982, Expiration Date: 20May2021) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. The following information was reported: RESPIRATORY RATE INCREASED (non-serious), outcome "unknown", described as "I got like rapid breathing"; DYSPNOEA (non-serious), outcome "unknown", described as "the short breathing, what it was"; FATIGUE (non-serious), outcome "unknown", described as "I get like very tired and breathing different than before."; HYPOTENSION (non-serious), outcome "unknown", described as "I start getting very low pressure, blood pressure under 100 and under 50, 40 some for no reason until now."; INSOMNIA (non-serious), outcome "unknown", described as "I cannot sleep because I hear my heart beating". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: Consumer stated, I got the vaccine, Pfizer vaccine in Jan2021. I was working very good before that, I did not have any problem though. Once I got my vaccine, I got it in Jan so, I still think, I still remember that, I tried to go to office stairs I got like rapid breathing, the short breathing, what it was, I get like very tired and breathing different than before. So, I said, may be something happened to me but I did not know thats vaccine or not but after that, I start getting very low pressure, blood pressure under 100 and under 50, 40 some for no reason until now. I retired because I am not able, that's causing me trouble when I work so, I retired since 03Apr2021. Consumer added, I tried to keep myself for Jan, Feb, Mar and beginning of Apr I resigned and left from the job because I am not able to work. Even now when I do any work its the same as before, I feel like same way. Very tired, my heart's rate, my doctor(Incomplete sentence). When paraphrased the concern: Consumer stated, Then I will contact you because I want to be sure so, I spend this is the second year same way. Every time I check my heart  with a doctor, the cardiologist doctor. I had stress test, everything they said, good. I am not, I do not have anything bad but at the same time, I hear my heart beating in my body, I hear in my ear, I hear in my back. Something I do not know where it comes until now, thats bother me now. I cannot sleep because I hear my heart beating. That's make me miserable, I believe that is from your vaccine. My sister have the same thing, my wife have the same thing(further not clarified if wife and sister of the patient used the same product and limited and no relevant information was available over the call hence, split was not made). Consumer stated, Today or tomorrow(informed about the timings of the Pfizer Medical Information department and they close on Saturday and Sunday). Consumer stated,  I tried to let talk with you because I hear the messages says, If you any issue users call this Covid 19 vaccine. Consumer added, The whole means, my wife has the same thing, my sister has the same thing, some day we have a 'low grade vibrations' and they checked out, their heart is good, is not bad something wrong(further clarification unknown). Further probing: Consumer stated, Thank you but I have another question about my wife she have a cyst or a lump, 'Xeljanz' (Name not clarified) the arthritis medicine and we need to have reapprove(not clarified further ). LOT# for the first shot: Consumer stated, I have got three shots after that, Jan and Mar and Dec. If Experiencing the problem after the first shot: Consumer stated, Yeah after the first one but I tried to keep going for good. I know there is danger, the covid-19 danger that is why I took second one and third one.   No follow-up attempts are possible. No further information is expected.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202201384616 Same patient, different vaccine doses and different event.;