Thanks for that. I, too, see variations (even between myself and my affected children). My mother and siblings. My maternal grandmother and siblings.
Question: If I am hypermobility type, could my mother have had vascular?? Do all generations have exact same type as diasnosis?
The EDS type runs true in families – if your grandmother had vascular, you will not be hypermobile. While the types run true, there is overlap so if you grandmother had vascular, you will have vascular type but you may have some hypermobile joints. There is overlap between the symptoms but the type runs true since it is genetic. It is possible to have two types (one inherited from dad and another type inherited from mom). So, no to your first question and yes, to answer your second question.
All EDS types should be tested for vascular issues (aortic dissection) due to the possible overlap.
All of this is per Dr. Dhar – Adult geneticist at Baylor in Houston.