So sorry Bird, that's tough. I had trouble with my legs too, for a couple of years before other sx showed up and someone decided to start looking at MS. I was told that I was "getting older" I was all of 45! and suddenly couldn't walk up a flight of stairs without feeling like I'd just run a marathon!

I was also having memory issues, which were also being dismissed as "age related" or possibly due to menopause, stress, or medication.

I feel your frustration.

Even though the docs have ruled out MS (for now) doesn't mean you don't have it, or something else. Though I hope for your sake it's something else, like a pinched nerve or too much or not enough of some mineral, (insert your theory here), or something weird. Do go for a second or third opinion. And look at other possible sx. You mention the tingling, numbness, etc. What about headache, pain in the limbs other odd sensations?

Good luck, and keep coming here. If nothing else, you'll get plenty of sympathy.