Could i have a personality disorder?

I'm never happy just always content. I don't really feel anything. I feel like a robot like I'm on auto poilet while my bodies still functioning. I think I have an antisocial one. But the way I've been feeling lately that doesn't fit anymore. I get these feelings that tell me whether or not I should do something & for some reason its not there anymore. I feel like something bad is going to happen to me. I wish I could eexplain it better. I feel like I'm blind in a box that I can barely fit in like everyday & I can't get out. Any suggestions