Signs and Symptoms

I appreciate most of the things in life. Every little facts. The smallest creature. Maybe the poem "All things are beautiful" I recited when I was in First Grade is stucked to my brain like a gum.
I appreciate that when I will be having a period there will be intolerable pain first as a warning sign...great, it helps me realize that my pituitary or whatever glands are working with my hormones. I appreciate that when the weather is too humid, the rain will comeby tomorrow and that would make me so happy. I appreciate that most of the things in human being's life have warning signs; have symptoms.
But why there's none when you came to my life? I anticipated we will break apart but I can't seem to see the symptoms yet. The message are loud and clear. You and I doesn't exist anymore. But there was no warning signs. I wanted to know, when exactly did it happen?