Hi there! Sorry that you're dealing with weakness and heaviness in your legs. That's got to be uncomfortable and make things difficult. Do you also have migraine disease? I know some people can feel generally weak, sore or fatigued during an attack, but I haven't heard of leg heaviness as a specific migraine symptom. There are so many possible causes for this. While we wait to see what others have to say, I would encourage you to talk to your doctor about it if you haven't already. Thinking of you. -Melissa, team member