Hello @fue and welcome to Mayo Clinic Connect. You ask a good question; one that I thought would be best addressed by members in an existing discussion on Peripheral Neuropathy and Benign Fasciculation Syndrome. You will notice that I have moved your post into this discussion so you can more easily connect with members like @swats005 and @rivermaya34 who have shared about fasciculations as well.

While we wait for members to join how long were you experiencing your symptoms in your lower leg before you noticed them in your upper leg and torso?

Hi there @fue, greetings to you and welcome to the community! 🙂 Forgive me, as I am not familiar with your story... In my own case, I would say "it depends" in answer to your question. Sometimes the worsening symptoms are just due to being in a flare period, which will eventually subside over time. It also could be, though, that like you said the expansiveness is increasing. I try to self-monitor and take note of significant changes in symptoms and let my doctors know when I'm concerned. Do you have a regular neurologist that you see and trust already? ... I'm so sorry you are suffering, keep your head up, everyday is a fresh start! 🙂