i agree with the cap as far as getting tested, although it doesn't sound like celiac, but you obviously have some kind of sensitivity/intolerance -
definitely some blood work is in order -
what is your diet like sans the grains ?
How can you tell that this does not sound like celiac when there are over 300 symptoms, and sometimes celiac exists with no symptoms at all? Where or not it's celiac or something else calls for a medical evaluation.
@goingcrazy, the only way to tell if you are celiac is to get tested for it. Nobody here can really tell you whether you have it or not.
Have you you consulted with your doctor regarding the symptoms? Have you been tested? Do you know of anyone else in your family that has celiac disease? It is hereditary.
I encourage you to ask your doctor for a referral to a GI doctor to find out what is going on with your heath. Good luck.