So I have had chronic vulvar burning and have seen 10+ doctors with no diagnoses except " vulvodynia" well I am going to travel to see a Dr . In PA, and first thing he did was order a cortisol and vit D test. To my surprise, my vit D was 28, and my cortisol was 0.5 in am! So I went to an endocriniologist, and he said that it's impossible as I would be in a coma like state on my bed. I feel exhausted everyday, but I thought that was the amitriplyline and gabapentin I take at night. He ordered the blood test again. I went in at same time 830 am and now it's showing <0.5 my other labs look great. He also ordered acth plasma, and that was normal. Why could all of my other bloodwork be normal, including the acth plasma, but my cortisol be low? Should I be worried? Could this be contributing to my chronic pain? I'm waiting on him to review that bloodwork and call me in. I ended up reviewing it on my chart on my own. Thanks for the input!