I'm not a Doc, but I don't think any professional would be prepared to diagnose by this medium, without actually seeing your relative. Have faith in the Doc's in Pakistan, if they've struggled to put a label on this then it just ain't gonna be possible to work out what it is using vague symptoms on an internet forum. I'm not trying to put you down here, but just trust the Doc's who are looking after her. Yeah it must be tough not knowing whats wrong but some uncertain decision isn't going to help, infact it could just make you feel a lot worse. Also unfortunately even if someone feels they are 100% sure about what this is (which I doubt) they will not be able to manage her treatment via the internet. Doc's in Pakistan are just as well trained as over here. I'm sorry I cannot be of more help. I wish you and your relative the very best.