LOL, I have noticed a "waddle" developing last few months also! I have always had a crooked leg so when I walk my feet tend to point outward, my friends have always teased me when hunting as they knew when they came across my tracks in the wilderness...
There is no doubt some of my balance issues are inflammation of the sinus and ear canals and winter months make it worse - so combine that with MS and wobble wobble wobble...
One things for sure there are bad days but I try to focus on the good and what I "can do " and not what I can't and that seems to help. Hardest part I think is just accepting that I am fighting a tough disease and some days it wins...
No doubt too age and bifocals add to the mix...