It could have been that you had the disease in one form when you were young, then it went into remission (absence of symptoms) and then it reared its ugly head again, in a somewhat different form. It is not unheard of for psychological and psychiatric ailments to have remission periods, but, alas, they do not last forever. The stressor seemed to have triggered you. I think you know what to do - you have a plan you followed successfully for 6 months, so there is certainty with respect to the WHAT. It is a big deal - it is very good. The question is HOW - how will you find strength and motivation to go back to the plan?