My advice is that being quite assertive with doctors (regardless if they are FS or not) is the best way to go if you want something to be done and it isn't. It reminds me of a time where DH could barely walk and the GP was sending us off to all sorts of specialsits, who were finding nothing wrong with him.. We cracked the ****s (in a really nice way) with his renal specialist and within 3 hours he had an MRI scan and found the cause (AVN in his hips) - it took us 6mths to get to this stage of frustration and we swore that we would never let anything ride so long again. So it was the third appointment this time with the FS when I told him "not getting any younger here doc, whatever it takes we will do" and he seemed to get us moving, although talk to me in another 4 months and I'll probably have a different tune to sing!