Extreme feelings

I feel like every feeling I have is extreme. Either I'm happy and life is great or I cant live my life anymore. I have a one and a half year old sweet baby boy and im married. A couple weeks before christmas we suffered a miscarriage and it devastated both of us. But more days than not im heartbroken and dont feel loved or appreciated or like I can keep living this life. I feel like my needs aren't met and dont matter. Then I feel like I'm crazy and need to get over myself and like something is wrong with me. I just dont know what to do but ik I need to do something.