Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. The given description is not enough to get into a proper diagnosis. Though I assume that your mother is actually troubled with insecurity. This happens with every mother of male childs. When children marry, mother feels insecurity and start behaving to ensure that son is taking care of her. One sort of attention seeking disorder of old age. This couples with unsettling the new daughter in law. There is nothing to worry as such phenomena is normal. Your mother should feel secure and you should make her feel secure and that is childrens duty. If you require more of my services in this regard, please post a direct query and I shall be happy to provide you psychotherapy tips. Hope this answers your query. Available for further clarifications. Good luck.