Second guessing

I’m second guessing my depression diagnosis. Maybe I’m ignorant but after taking my anti-depressant medicine I thought my depression would become less extreme, more middle of the road. Instead, I’m having four to five “bad” days and rarely more than two dealable days in a week. Is this normal? Could there be something more at play? All I know is that this depression is sucking the life out of me. As you can tell this is one of my bad days. I am so much more than this. I have heart and soul filled with love and I want to spread joy where ever I go but I can’t shake the sadness.