Definitely HUGE deal with HAZARDOUS consequences.
I can understand if you have no symptoms why you might ask why not? just a little? once in a while? In fact I remember thinking similar thoughts at diagnosis even though my symptoms were very bad. After the initial shock wore off and I read as much as I could - I became very happy that all I had to do to regain health was remove gluten - well it was much more difficult than that for me - I had gone undiagnosed for 43 years so the damage was severe - three and half years later I still have major health problems caused by undiagnosed Celiac Disease.
When I hear "no symptoms" I think - oh how fortunate that person was to be diagnosed before this disease caused havoc to their health, family and life. I sure hope they can remain gluten-free to prevent the health problems I have experienced.
Even the smallest amount of gluten will continue to cause the auto-immune reaction taking place in your body. If you keep ingesting gluten, damage and symptoms will continue and likely get much worse.
The learning curve is tough, but once the transition is made it really is not hard to live gluten-free and the benefit of good health is priceless.
During these first few months should you find yourself ready to cheat - post your frustration here - there are plenty of us here that can understand every one of the frustrations that you will experience in the coming days.
It is very likely that you will begin having reactions to accidental ingestion of gluten at some point in these first few weeks/months. Once gluten is removed the body often reacts strongly to small mistakes. These reactions usually help reinforce the need to be as close to 100% gluten-free as you can.
You may also discover that you do have some minor symptoms that you never would have connected to gluten improve once it is removed. Depending on how long you have had Celiac Disease you may have dismissed minor aches, pains or digestive problems because they were just a little ache here, a little indigestion there - nothing that really slowed you down or seemed to be something to worry about.
Read as much as you can, ask questions and commit to removing gluten for your health and future.
Good Luck to you