It's so true that injured feelings hurt moret han cuts, scrapes, and broken bones.  The best evidence we have of this statement is anxiety disorders such as Post Traumatic Stress Disorder, a heritable illness with biochemical and genetic roots.
    Like it's cousin, major depression, susceptibility to PTSD runs in families, is far more common among women, and has mortal risks.  The trigger is a disaster or a devastating assault on one's psyche but the groundwork that makes a person vulnerable is laid down by their genes and the subtle flow of neurotransmitters that regulate their emotions.  Those suffering from trauma will lose interest in activities they used to love (your work comes to mind), and they relive the trauma over nad over through flashbacks and panic.  Both mimic life-threatening fear of suicide and substance abuse onto their children, not just through their genes but via their unusual emotional responses- which can alter the genetic capacities of the next generation to handle its own stress.  People with PTSD secrete smaller amounts of Cortisol, a chemical that helps the body deal with life-threatening events, and they have a smaller hippocampi, which faces down fear.
    Treatment for PTSD should be taken as serious as cancer.  Seeing a specialist is important, along with medication, cognitive behavioral therapy and regular follow up visits.

What types of medicine do they give to people with PTSD? Just like Antidepressants? Or are there other perscriptions.. I think its pretty crazy how things that bothered us in the past can haunt us down even when were not realising it.

I'd imagine they prescribe a powerful anti-anxiety.  My aunt had mild PTSD after getting in a really bad car accident and she had depression too.  She didn't want to leave house and she started becoming really distant.  Now she is better but she definitely had to work hard to get through it.