Hi and welcome to NeuroTalk.

Your lack of/change in emotional states is not uncommon with concussions. My emotions were all over the place for months after my injury. The prefrontal cortex is the primary area of the brain responsible for emotional processing, and based on your description of your injury, this is where the impact was. What you describe sounds like what psychologists would call "flat affect"

This will probably resolve over time, but based on your description of your emotional state, especially the suicidal thoughts, I would strongly suggest you start therapy immediately. I’d start with a neuropsychologist that specializes in brain injury. They can help determine what type of treatment would be most helpful, and refer you accordingly. Cognitive behavioral therapy could be one option they might recommend. If they do recommend medication, it likely won’t be forever so go with it if that is one of the recommendations.

Your injury is relatively recent, and you should expect improvements, but those improvements will be quicker and more effective with medical and psychological professionals guiding you.

You might also consider a brain injury support group. The Brain Injury Association of America may have an affiliate in your state that has a support group in your area.

http://www.biausa.org/state-affiliates.htm

Also check out http://www.brainline.org/content/201...u-to-know.html

You will get better, but it will take time. Best to you.