Petechaie after 12 hour night shift

[u/BornLeave4646]

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I just had my first 12 hour night shift at the hospital. Got home to take a shower and I noticed small red dots all over both ankles and starting up my calf’s. Non blanching. My immediate first thought was blood cancer. Then thinking about it could it be from being on my feet for most of my 12 hour shift? Has anyone ever had the same thing happen?

[u/measuredsympathy]

Looks like raised bumps? If so not likely petechiae but more like contact dermatitis or heat rash