I keep having what are suspected TIAs then concluded not to

I keep having what are suspected TIA's then concluded not to be following a MRI. This last episode began with me stumbling a few times then having a fall which left my right leg initially very numb and heavy. Like coming round from an anaesthetic. I have had ten operations on my legs over the last four years and have been diagnosed as having fibromyalgia along with Coeliac disease and Protein S deficiency. I saw my neurologist who I have seen for ten years following my first TIA last week who was very dismissive of the systems and quite complacent. My MRI scans show a lot of white matter on my brain and I have been tested for CADASIL Fabre's DISEASE with negative results. My GP says I would make an interesting text book for a medical student. My main complaint is that no one seems to want to get to the bottom of this.