I don't know what to think or say. I have had ms (6 years). i went for ccsvi treatment in san diego. They never found a blockage. I came home and about a month later someone told me my viens could be inverted (the valves) and that could be my problem (inverted valves).Don't know much about this,although i've looked into it, a little. I find myself kinda getting worse. Balance and stamina have always been an issuse with me. Anyhow ,does anyone know or have any ideas what I should do now?