Most of the time, if a person has leukemia it will include other smptoms such as fatigue, bone pain, weight loss, and bleeding from the gums. If you're having any of these symptoms it may be a good idea to see your doctor- if for no other reason than for your own peace of mind.
This has happened to me before...from insect bites...and just random itching.....I will scratch so much that I end of with bruising. Not sure what it means....I generally bruise easily anyway....Just wanted to let you know you weren't alone! I've had lots of blood work done for other things....and the doctors have never said anything was abnormal.