Good thought provoking question.
Yes, I fear myself very much. In middle school I began to have obsessive thoughts that drove me insane. It was OCD without compulsions. Every moment in my head was like constant torment. I had to drown out sound. I cried close to everyday. I became very depressed and more anxious (I've had anxiety since I was three). I remember not even being able to stay at a restaurant. I felt so ashamed for what I put my family through. I felt crazy.
After taking zoloft, I was more or less stable. I still have anxiety though and have been suicidal a few times. There are times I literally get the urge to rip my skin open. If the zoloft stopped working and there was no other drug, I swear I would have to be in a mental institution. So yes, I greatly fear myself and my mind. Because when times are hard, I will seek to destroy myself. Without drugs, I can't even withstand my own mind. But that's just how it is.