It's Complicated But I Have Hashimotos, Celiac Sprue, Fibro, Chronic

It's complicated but I have Hashimotos, celiac Sprue, fibro, chronic fatigue, migraines etc. but my question is how can I get a doctor in Nebraska to test my adrenal function properly? I think they are not working well as. Have stabbing back pain, DEBILITATING FATIGUE, (bedridden) headaches', sleep problems, heart pounding and racing. I'm truly scared