Oh gingernut, just what nobody wants to hear - after having come through it and got through 2 emotionally challenging years! They say, from what I've read, that having a second diagnosis can hit much harder than the first (but still totally treatable of course!)- but thats jumping the gun isn't it at this point. From what I read from you, they have not diagnosed anything, but it sounds like there is something further they want to check. As you know, they are very very careful with anyone with a prior diagnosis and call-backs are common. I have my fingers firmly crossed for you that this is just a 'lets just be double triple sure' and call her back in thing.