My gums have been really itchy for about 4 days. i have always been really good with cleaning my teeth and i don't know how to stop it?

? dental infection: Either in your gums or any of your teeth, use a different toothpaste and a new brush, and an analgesic /antiseptic mouth wash, see your dentist if not better, good luck

Dental exam: Have your teeth examined. You may need a professional cleaning.

Neither do I: Can't tell what to do until cause of itching (symptom of many disorders) is determined. Please see your Dentist, or preferably a Periodontist, a gum specialist, for differential diagnosis and treatment plan.