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...

Hey, wait a minute! I thougt it was my gate they have never, never, ever seen before! Ha! Wonder if they teach this line in their schooling? Hmmmm.
I have weak hips. One side more than the other. The physical therapists are great at telling you what exactly is going on. My feet quickly point out to the side as I take a step. I dont want them to. the ptherapist showed me this happens because I am using the muscle on the inside of my leg to move my leg forward. The more steps I take, my feet have to touch down as I cant finish the step.
It is all in how our body compensates. I have to unlearn leaning forward. Leaning forward allows me to walk better as forward doesnt use the sides as much. But then my lower back takes a toll.
Yes, dont let them make you doubt your symptoms! They do it to almost everyone!