Hi, Nirmal. I understand where your coming from. I'm bp and yes I get aggresive and angry, I also throw things when I'm in a rage - but all of this is very rare for me. It's when I have manic mania that all this happens. 99% of the time I'm just meek and let who ever want's to walk all over me. I just don't care. I live most of my life in a very deep depressed state. I think your "sister" needs to go to counseling with you and let her ask the therapist or psych doc questions - in fact if would be a good idea to have your parents there as well as this does effect the entire family, not just you. They need to know how to help you and not be judging you! But these are thoughts on your situation.