Thank you for all the comforting replies. I am a bit overwhelmed by all the responses. It seems that everybody here had their own share of bruising.
I think I was really freaked out about it because I knew that I don't bruise easily. I just don't.
The lightly dark spot on my hand is still here and to be honest, it still worries me.
I just have to remember I had a normal CBC test last month and I hope that can put down my big C fears for now.
I did catch myself biting the back of my left hand and other fingers unconsciously though! Well, I am not sure if that somehow contributed to the darkening of the skin.
shutterbug, sorry to hear you are going through it right now as well. Do let us know how your trip to the doctor went.