Vein bruise?

So it went from looking brownish on the first day to purple-ish brown green on the 3rd day...
It actually looks worst than it seems in the photo just that the photo can't actually capture the discoloration.

And I must say, it's the most painful and inconvenient one to date!!
I can't really stretch my arm..
Touching it causes pain
Using strength cause pain too....
What kind of bruise is that!!!!

There was a vein bump thingy when it first appeared.
I din take a pic then cos I was still in the midst of class
Then I use my wrist band to cover and protect the area
Now it's "beautifully" colored... =_='''

I wonder how long it takes to heal...

The bruises on your skin can heal easily
But the bruises on the heart can never heal properly...
Hiaz...