I have a daughter that's almost 4 that at first just seemed extremely stubborn, and there are many things she may do just because of a strong personality but I know some of it isn't normal behavior for her age. She becomes overly obsessed with things to the point of screaming, hitting, or scratching when she doesn't get her way. She will still have horrible tantrums, she is mean to animals, and she is very intelligent for her age so she understands that she shouldn't do all these things. She also won't sleep very much and lately I've been sleeping in her room or she has to sleep in the living room; she says there are monsters and ghosts in her room and she has woken up screaming with horrible nightmares. I know being scared of those things is normal and bugs and the dark but she's to the point where it seems extreme and becoming sleep deprived and very hard to deal with. She also gets scared very easily, will ask strange questions, and seems to worry about a lot of things kids from 3-4 wouldn't normally worry about. She always has to have me by her side because she seems fearful if I'm not. Depression, anxiety and OCD all run in my family, I'm worried about that; I know she is very young but I see a lot of worrisome characteristics in her. What should I do, just talk to her pediatrician about it?