In the primary repression phase, 'it is highly probable that the immediate precipitating causes of primal repressions are quantitative factors such as...the earliest outbreaks of anxiety, which are of a very intense kind'.
1 A neurologist treats brain and nervous system disorders that may contribute to sleep problems.  An otolaryngologist treats ear, nose, and throat conditions. This doctor may evaluate snoring and other breathing problems associated with sleep disorders.
It is best to seek the advice of a qualified sleep specialist since the diagnosis and treatment of sleep disorders, like any other medical condition, is something that can only be provided on an individual level. Daron Scherr, MD, DABSM. Answered on: 4/5/2013 1. There is debate among the experts on how to answer this.