sleep walking and worried

I need to start with that I have been diagnosed with scizotypal disorder for the last four years, but I have had on problem for the last twenty plus years. I have been sleep walking and talking since I was in the middle east in 1991. I started getting help when I started to sleep walk out of my house. The help has only been able to keep me in my house. I have tried taking my medicine on an empty stomach. I do not drink caffeine before bed. My bedroom is dark, cool, and quiet. I stay on a time schedule, but my sleep walking is really getting the best of me.
I am sleep walking and cooking food. I mean that I am using the oven. I am using the microwave. I am walking around the house trying to find items that do not exist. I must say that the only reason I know about the walking and talking, is that my wife is telling me about my excursions. She goes to bed long after my medicine has put me to sleep.
I some times remember small parts of the sleep walking. The parts are brief that I do remember. I had left the house a month ago. I left the house and stood in the car port looking at my car for fifteen to twenty minutes. My wife said that I stood there. I remember thinking that I needed something out of my car, but could not remember what that thing was.
My wife is starting to hurt my feelings because she acts disgusted about my sleep walking. She acts like I know what is going on. Like the sleep walking is some kind of parlor trick. I have no control over the sleep walking and the ridicule is starting to get under my skin.
The sleep walking is happening every night now. It is just a matter of how long and intense the episode happens.
Any help? Any suggestions?

Hello,

are you using any medication? I had this from Ambien (zolpidem). I sleep-walked, sleep-shopped on Amazon, sleep-moderated this forum (oops), sleep-sent e-mails...

Some people have this problem and my uncle had sleep walking problem. His son (my cousine) took him an expert for his treatment than he gave him some tips. They are- get adequate sleep, limit stress. meditate or do relaxation exercises, avoid any kind of stimulation prior to bedtime. At last he rescued from it.

Funny but a big problem really. I think you need to see a doctor.