Symptoms such as hearing voices may well be down to biochemical imbalances! Everbody's body and metabolism are different and people with mental health issues often require higher levels of certain nutrients. Other factors, including stress, can push things over the edge and lead to symptoms.   Unenlightened doctors will tell you the only way to treat mental health problems is with drugs.  But this is simply not true!  (and never believe it when doctors tell you there's nothing you can do for a condition!)  Many people are significantly helped through diet and supplementation to correct the imbalance.  You should get tested for biochemical imbalances.  Not sure where you are located but check out http://www.foodforthebrain.org/content.asp?id_Content=1.  It's not cheap but could make all the difference.  Have a look at Patrick Holford's book, 'Optimum Nutrition for the Mind'.  Good luck. Sending love