Do you think these symptoms could be the result of stress and anxiety? If not is there another event that could have triggered them?
I would recommend going to the doctor with all your concerns and let them run whatever tests they want, if they don't find anything wrong then it "could" be stress related. From all that I have read stress can effect your nervous system and adrenal glands and produce all kinds of physical symptoms. Check out this site http://www.anxietycentre.com/anxiety-symptoms.shtml
If this could be your problem a conventional doctor might not be of much help, many don't even believe in adrenal fatigue. So if this could be you then holistic medicine might be of more help.