Wondering if small fiber neuropathy (SFN) could be behind your dysautonomia symptoms? It’s a valid question — and one that comes up often. SFN can cause autonomic dysfunction, but it doesn’t usually affect the entire system evenly. It’s often patchy in distribution, meaning symptoms may localize to certain areas rather than being widespread. If you’re noticing thermoregulation issues (always hot or cold), tachycardia, or gastroparesis, those may all stem from small fiber involvement. But typical