Hello EC. I have PTSD and ADD and yes they are related. I have had ADD for years and then got diagnosed with PTSD. Although if you have ADD it does not mean that you have PTSD.(If that makes sense) PTSD (post traumatic stress disorder is related to something traumatic happening in your life). Getting diagnosed from a professional is your best advantage over taking care of the problem that you are having at this time. Take care of yourself. Soidhonia