Hey everyone thank you for all the help and comments. As it turns out I don't have PCS, Instead a specialist believes I'm suffering from post traumatic stress, which would explain why i only start to feel completely hopeless and ill when the anxiety and flashbacks of the incident occurs. I've been prescribed some relaxants and an antidepressant. With time this should all pass and I'll return back to my carefree and less irritable self. I thank everyone for their support.