There are no "stupid questions". You are most welcome to ask.
Because your legs carry your body weight, your gait is often a noticeable symptom. Yes, arms can be affected through weakness, numbness, and/or coordination. If you use your arms often, you might find that you can get exhausted. I know I did when i was exercising my arms. While I dismissed my leg problems for 5 years, it was when I started dropping things- even light objects- from my right hand and then my right arm went numb and then became useless.
If you have MS, you may or may not have arm problems. It really varies between each MSer.
I would allow your anti-anxiety meds to keep working and to enjoy a restful vacation. You may find that this will be quite satisfying.