Major trauma, loss or serious pressure causing close down and fragmentation at mental and emotional level may not show any symptoms in the beginning. Over the years this shows up as major health issue.
Then Psychic attacks are another reason for the fragmentations.
Losing a aspect of self during some major negative event is probably a way of self defense to survive the trauma during the process.
But this makes the healing tougher than expected.
A person may never become or feel that way again as a aspect is lost. Healing may never happen as there is always a missing part of self.
Soul fragment retrieval is a metaphoric epxression where a persons lost part of soul are retrieved and merged back.
Here is a Quantum healing session for Soul retrieval process. The session works directly from the video.
Then there is another aspect of this. Trauma and suffering at the very early childhood leaves the inner child with negative programs that shows up as adultdood behavioural problems.
One healing session to heal the inner child.