I get very angry very quickly, and just appears to be random. but i always suppress it to avoid hurting others, is there something wrong with me?

Personality disorder: Organic brain disorders, drug and alcohol disorders, bipolar disorder, schizophrenia. Panic/ rage in men, intermittent explosive disorder, autism spectrum disorders, agitated depression, generalized anxiety disorder with high irritability, pms, rem parasomnias, dissociative disorders, and some culture bound syndromes like running amok. All of these are possible conditions that cause anger and there are actually many more. You should start with your family doctor for a physical examination followed by the diagnostic evaluation by a psychiatrist and then treatment either with psychotherapy or medication and psychotherapy. Best wishes.