question: For years I have felt like I am stoned but I don't smoke, about 3 years ago I had carbon monoxide poisoning and ever since have been extremly tired and have had difficulty doing anything, about a yr ago it started getting worse and 5 months ago I started having sever confussion, memory loss, difficulty thinking of anything, near black out upon standing and walking after a min.  The confussion is gone but I am so tired all the time, I am having the near black outs so many times a day I cannot count, I cannot think at all, my words get all messed up, words that I know I just can't think of.  I have had all sorts of test but they just say they will have to wait and watch.