GERD & "stomach fullness" feeling

I usually post on the IBS board, but I am needing your "GERD help"...and I appreciate all of you insight on GERD because I'm new to it.

First of all, I started to have diarrhea/loose stools in mid-March and have had it every day since without 1 normal bowel movement.  Talk about worry a girl!

Anyway, I have been through the ringer with test after test, including...colonoscopy, EGD, ultrasound of gallbladder, abdomen and pelvis, CT scan of abdomen and pelvis, hida scan of gall bladder, a number of stool cultures, urinalysis, blood tests, etc.  The only thing ght Gastrointerologist "found" was GERD while performing my EGD.  He showed me a picture of my lower esophogas with the irritation and it looked like a "red line" shooting upwards...didn't look too long, but it was not a very big picture. ANyway, he said it wouldn't be causing my diarrhea, but I still had GERD, nevertheless.  End result, my GI doctor said I have IBS (irritable bowel syndrome) with diarrhea and not to come back for a year.  I still have the diarrhea problem DAILY.

Here's my concern.  Since this so called IBS-D started, I have been burping a lot after eating (when  have an appetite, having diarrhea everyday does something to your appetite).  I also have a feeling of fullness in my stomach that goes up to my mid chest.  It's like I feel like I am going to vomit but I never do.  I don't feel nauscious all day...In fast, I wouldn't call this feeilng nauscious...I'd call it a full feeling that goes up my esophagas. 

Is this normal for GERD???  I dn't know much about it...just that it is an acid problem and it backflows into your esophagus causing irritation.  Can IBS-D and GERD be related?  I just need some comforting words.  I am so worked up and worried about all of this.  Which reminds me to ask, can stress effect GERD too??

Thank You!

Hi all...to answer your questions, I am a 26 year old female and currently about 113 lbs. (Weighed 118 in January.)  I have had diarrhea everyday since mid-March.  It has calmed down from 5-8 times a day to 1-2 times a day.  I am currently not on any medications after trying about 10 of them, but I have decided to go to a "natural" doctor that believes in natural treatments.  He has putme on 4 supplements now...including, Zymex, Choline, Cholocal II, and Trace Minerals B-12. 

I have had a colonoscopy, EGD, CT scans, ultrasounds, stool cultures, etc.  They found that I had GERD and slight Superior Mesentery Artery Syndrome (where the duodenum is kinked a little).  My Gastrointerologist insisted that I have an EGD to check it out to make sure that my stomach could empty properly and he said that it isn't that bad and that I shouldn't have any problems with the emptying of my stomach and he said that I could just be "built like that."  (Meaning I could have been like this all of my life.) All else aside, none of these things would cause diarrhea.  

I just don;t really understand what GERD is all about and was wondering if there is some natural remedy to take away the fullness feeling.

I really appreciate all if your help!  Thanks!