Weakness is very common, and can have several causes, all of which may be related to MS. The MS lesions themselves can impact your muscle strength and tone by blocking, or at least slowing down, the nerve impulses to the area in question. If your muscles get weaker, you try to compensate for that, which can cause changes in gait -- and that can exacerbate the problem. Also, if you're doing less physical activity due to other MS-related symptoms, you can become deconditioned.

An evaluation by a physical and/or occupational therapist is a great way to start dealing with this issue. They can design an exercise program that helps you preserve the muscle strength you do have, and possibly regain some of what you've lost. Believe it or not (and I didn't know this until I went to PT myself), just starting an exercise program on your own can actually make weakness and muscle fatigue WORSE
if you're not careful to target the right muscle groups and balance your workout among them.

I'm a big fan of PT/OT. It's helpful for all stages of MS, and really can help you understand your body.

-Karen

If I noticed recent weakness I would call my neuro. It might be an exacerbation. I would count on my neuro first. Maybe you need a course of steriod.

Thanks to both of you for the advice! The PT is a great idea and I do plan to contact my doctor.

Thanks again!