I have a blood clot in my leg; Started having a pain in my lower leg; there is like a vein seems like it raised, raised area on my leg; It's kind of like protruding, I can see it and I can feel it; there is like a vein seems like it raised, raised area on my leg; It's kind of like protruding, I can see it and I can feel it; Don't feel comfortable; shooting pain; bluish tint around it; bluish in color. Light tint of blue; This is a spontaneous report from a contactable consumer.  A 34-year-old male patient received BNT162B2 (COMIRNATY), via an unspecified route of administration, administered in Arm Left on 19Aug2021 (Batch/Lot Number: FD8448) as DOSE 1, SINGLE for covid-19 immunization. Medical history included sleep disorder from an unknown date and unknown if ongoing, blood pressure measurement from an unknown date and unknown if ongoing Verbatim: Blood pressure. Concomitant medications included lisinopril  taken for blood pressure, start and stop date were not reported;  am taking a sleep medication, it is amitriptyline, start and stop date were not reported (further clarification unknown hence not captured in tab)." The patient did not receive any other vaccine within 4 weeks prior to the vaccine. The patient experienced a blood clot in my leg, started having a pain in  lower leg, there is like a vein seems like it raised, raised area on leg; it's kind of like protruding, I can see it and I can feel it , don't feel comfortable on 19Aug2021. The outcome of blood clot in my leg, started having a pain in  lower leg, there is like a vein seems like it raised, raised area on leg; it's kind of like protruding, I can see it and I can feel it  and don't feel comfortable was not recovered.  Caller states, "the day I got vaccine few hours later a pain in my lower left leg on the inside and I didn't think too much of it at the time. Just a pain, not that alarming. The next day I got same pain again in same spot, I basically just rubbed it with my hand and elevated my leg and it went away. The next day felt the same pain. I looked at it and saw that the skin was raised, I am guessing it's a vein a protrusion under my skin where the pain is where I was feeling the days prior and at the time. Every day since at some point throughout the day, I get the same pain like a shooting pain and need to elevate my leg and massage it a little bit and it goes away. It is a bluish tint around it. It's not hot or itchy I don't know it's maybe like a less of a dot or like a pea or half of a dime, raised as a bubble and bluish in color. Light tint of blue. Started having a pain in my lower leg, there is like a vein seems like it raised, raised area on my leg; It's kind of like protruding, I can see it and I can feel it. On an unknown date don't feel comfortable and If I am on my feet everything I have to stop until the pain goes, this comes when I am putting much stress on my this side of my leg on my foot. Consumer stated, "I got the first dose to the Pfizer vaccine about 10 days ago and since I got it I started having a pain in my lower leg on the same spot and there is like a vein seems like it raised, raised area on my leg which I'm guessing is a vein and I am in pain throughout the day and when I get the pain I have to stop whatever activity that, like if I am on my feet everything I have to stop until the pain goes away and it just, this seriously comes when I am putting much stress on my this side of my leg on my foot." Start date of event: Consumer stated, "It was the same day when I got the shot, 19Aug2021." Other side effects other than pain in leg, consumer stated, "No, that's the, I mean that's the only real issue. Yes it's a specific point and I guess it's got to be where the vein is and it's kind of like protruding, so I mean it's, I can see it and I can feel it and I obviously never had that before." Outcome of the event: Consumer stated, "It's gotten a little worse and yeah it's an everyday occurrence."  Follow-up attempts are completed. No further information is expected.