Suggest Treatment For Depression And Fatigue

Hi there I ve been diagnosed with depression and taking 120 mg per night of cymbalta. But i think I might have something other than depression. I ve been on then for 6 years but my moods are all over the place I get angry easily, crying all the time, my husband just told me he s not in love with me anymore because I say nasty things to him which I don t mean to say but it just comes out. I get something in my head and I can t get it out I believe in it so much I think it s really happened. My husband and I have been together for 10 years he said he can t take it anymore I ve found it very hard to trust him even though he s done nothing wrong. I don t like to go out I m scared I don t like to answer the phone. I m so tired all the time I don t feel like doing anything. I m not sleeping maybe 4 hrs interrupted sleep. When my husband asks me questions I jump to something else and don t answer. My tongue is like poison I can t help saying horrible things I ve pushed my husband away. I get so angry it s like I go into a tunnel and it takes over me. Some days I m really happy and nothing can get me down then other days I feel so bad. What do you think is wrong with me??