What happened here?

This is what my arms looks now six days later after having an Angiogram done using the veins in my arm. Now it’s mainly just black and blue and most of the swelling has gone down. They never told me to expect this. Not sure if this is normal or not. Sorry for those of you who were wondering about my results from the Angiogram. Everything looked normal, no blockage found. I was kind of hoping maybe they’d find something so they could fix whatever is causing me to feel so poorly still. I am still short of breath and have no energy. Maybe someday I’ll feel better again.