I was diagnosed in 1999 RR, and between that time and the fall of 2010 (SP by then) I had three separate instances, where after sitting straight up, with feet on the floor (at theatre) I arose to have a nearer normal gait (my right leg being the problem, heavy and uncooperative) ...but that ability (all late in the evening) would be gone

the next morning each time.
Following the W5 Report, these three instances convinced me that I would be a good candidate for angioplasty. I chose Dr. Sclafani, who found and treated me in May this year for a 50% blockage in my LIJ and narrowings in the RIJ and azygous. I have thankfully, had many small improvements

...but not so much with my walking as I had hoped.
However, between the angio and using Incline Bed Therapy (started at 3" in July and currently at 4") ...during August I have experienced
2 more - OMG I can walk - in a nearer normal fashion after two, over an hour car rides, over two consecutive weekends, and now again last night! I arose from our sofa to find a more stable gait, ...I could lift my right leg! (but gone again

this morning) Clearly there is something else going on, and I do believe it is postural and in my neck. (but I have never had pain - and it is just all so odd - and why only late at night?...)
It's interesting that this happened three months after angioplasty. I saw new improvements in May, after my February angioplasty; gradual improvements could be the result of neurological healing.