Thanks for all the suggestions. I do see she is worse when she is tired. Also, I have a sister who has been on meds. for at least 20yrs. for depression. I know it can run in families and I have thought that could be a factor. Anytime I brought it up to my fam. they think I'm reading too much into it, trying to find a label for her behavior. I just know that if there is this much stress in the house she can't be happy either. Maybe it is time to seek professional help in helping her. I'll try anything we can't keep going like we are.
