Dysfunctional grief does not sound good and it isn’t. It is grief with complications, grief that is not being handled well. This type of grief isn’t life-threatening, but it is life-debilitating. By that, I mean it is a grief that has been allowed to interfere with the activities of daily living.
When grief is new, activities can almost come to a standstill and that is very normal. Remember, grief is personal, so to say, that after a certain period of time has gone by one should be doing this or that is misleading. Time can be used as a general guideline, but do not hold someone to it.
Our instincts take pretty good care of us, if we let them. By our instincts, we can know if we are on track or if there is a problem. There is good information in those books and authored by competent and qualified individuals, but take what you read and combine it with your instincts. Remember your grief is yours. No author can know how grief will work for you. That is your responsibility. Trust your instincts.