Am I Celiac? I have a lot of symptoms but would like to know for sure.?

I exercise 30 minutes daily and have been diagnosed with depression, thyroid disease, asthma and I keep gaining weight.....90 pounds in 10 years. I've had painful canker sores for years that refuse to go away; mood swings; gas after eating; floating stools; edema that won't go away. Belly is quite swollen. I asked my primary to test me for Celiac and she decided to p me off to an allergist instead.....which I can't get in until March.