yes, Tiff is acting her age. she'sscared..as i am sure you are....but remember when you hear hoof beats look for horses not elephants or zebras..? perhaps endometriosis? doubt the tuberous sclerosis ...most cases i have seen have been diagnosed very early ; usually in infancy and have more sx than you describe by age 20...but i am def not an MD. prayers for a simple and early definitive diagnosis. Hang in there,,,you know the harder she pushes you away the more she really needs you!