I had food allergy testing. I am allergic to dairy, casein and coffee. I've removed that from my diet (it has been about 3-4 weeks). I'm not feeling any different (bladder issues, stomach pain, bloated...). I'm thinking about starting an elimination diet to remove soy, eggs, sugar and gluten. But, if my food allergy testing came back ok with these foods, is it possible they would still be bothering me?