Well I do have it and so does my mom. I was diagnosed by a doctor in 1992 and since then studied nutrition to become a qualified nutritionist and the information you have been given is absolutely correct. Celiac disease destroys the tiny villas in your intestinal walls making it more difficult for you to absorb the nutrition from your food and causing digestive problems.
Back when I was diagnosed there was so little information out there about it and if you were lucky enough to find any gluten free bread you would soon be very disappointed to find it as appealing as cardboard. Things have come a long way. There are gluten free noodles, gluten free flours, breads, cookies, crackers, pancake mixes and practically any food you can think of can be gluten free and taste delicious.
Quite often, but not always, celiacs can have problems digesting dairy products also and there are an amazing selection of dairy free alternatives that are fabulous. Coconut milk is suitable for some things, almond milk, rice milk , soy milk and other milks for others.
Its probably very overwhelming to you at the moment so if you’d like me to assist you with any of this I’d be most happy to help. I have excellent recipes for most foods and know all the food alternatives that you might want to know in order to thrive.
Just let me know what you need help with most.