I'm not sure if I have anxiety but sometimes I feel shaky out of no where and I get a rapid heart beat. My thoughts get out of control, like I worry a lot or over think things. I feel emotionally numb sometimes and I'm just so mean to people at times with out even wanting to be. It just happens. I was never like this.. I was always happy and such a sweet heart. For awhile nows I've felt so emotionally unstable, anxious, mad at the world, scared, etc. please help me ..