I'm sorry you are struggling with this depression & emotionality on top of trying to heal from your surgery. A bit over 20 years ago now I underwent a fairly major abdominal surgery (followed by another lesser one.) And I can still recall the post-op depression I experienced. (I still recall the challenges of getting cleaned up.) In fact, during the recovery process I actually developed a brand new (for me) self-harm strategy. (I'll spare you the details.) Fortunately I did give that up after a while though.

Anyway I just wanted to offer my best wishes for your quick & complete recovery. (Please do call your doctor's office if you feel you need to.)