New to this & need help

Needing some answers. My doc called called 2 days ago telling me my stool sample was positive for celiacs disease. My question is can they tell what it is by stool sample? I've been sick since xmas.before that in the past yr I've woke up in middle of night with a terrible gas belly ach. 11 yrs ago I went through a spell and was told it was ibs & I had my gallbladder removed. It took over a yr to get better. My symptoms are swelled left rib cage & hurting like I have ulcer. I kept thinking it was kidney stones coming back till xmas eve I was aching so bad in lower stomach & hips. Felt dehydrated. Every since then if I eat I feel horrible. Pain under left to cage & also right but lower. All my blood work is fine except I'm bad anemic. I am constantly dizzy. I was put on protonix , sucrafate & a iron pill. I believe a lot of this sickness has to do with I thought it was kidney stone & went to urologist & he done exrays & told me I was impacted to go home & drink citrate magnesium. I did & guess what I got deathly I'll. Come to find out my primary took a look at exrays & I was not impacted! Then I had sinus infection & could tell a difference in my breathing so primary put me on augmentium & zocor for cholesterol .4 days into it I was deathly sick having tachardia & stopped the meds. I am short of breath. My stomach feels like it never stops working. Night sweats but mind you I am 49. I just feel really sick. Doc wants me to go gluten free. When I asked about sending me to gastro his nurse told me to try this first.

Thanks for the welcome, I had 2 doc appointments today.pne with dietician the other with dermatologist. Just my luck on the way home ( 45 min drive) I went into tachardia. It didn't last long but then it came back. I called my doc & they told me to get to we. I feel like it was my stomach that set it off. It got all hot feeling & then it was like it traveled up my throat. I do have gerd but this wasn't typical. They did a heart test & told me it needs looked into. They gave me hyscomin or something like that for cramps. They also ran Ct & said everything looked normal. I am on day 2 gluten free diet. Lord please let this work!