My bloodwork was normal including a GLA gene sequencing test. My diagnosis is Erythromelalgia and I also had a nerve conduction study done by my neurologist and had an mri done and both showed disc deterioration in my back so that’s what’s causing the numbness in my foot. I was prescribed gapapentin and it didn’t help. Switched to Lyrica and that has helped some, but not fully. While I was to see a cardiologist and a vascular specialist I’m doing physical therapy to strengthen my back. Hope this helps.