Report Stiffness When Walking/standing ? in Dysautonomia Discussion Posted March 31, 2014 Hi everybody,I haven't read much about this symptom and wonder if it might be directly POTS-related.Whenever I walk or stand, I feel a very strange "stiffness" of my whole body within a couple of minutes. This makes walking/standing even more difficult than it is already due to dizziness, shortness of breath, etc.I also get severe cramps in my lower legs almost immediately after the first steps of walking. This very characteristic stiffness usually lasts for quite a long time after I lay down. Though my bpm goes down quite fast when I lay down (most of the time), my whole body remains "stiff" and therefore "strained", i.e. unable to relax sometimes for hours...Does anybody else experience this? Are there any explanations for it?