I am experiencing the same type of fullness as you describe. I'd gained about 10 lbs and my first call was to my GYN b/c I know that my DHEA (adrenal gland functions) were off according to a saliva hormonal test I'd done in June. I thought it was my thyroid. He immediately ordered a CA125 and vaginal ultrasound along with the thyroid test. All came back normal, except for a couple of small follicular cysts on my remaining ovary, left side and some diverticulosis. My right ovary was removed Nov '06 along with a cyst.
I've been to a GI Specialist, had an endoscopy and will have a stomach emptying test done next week. Star, you are wise...I do have a hiatal hernia. I didn't get the impression from the doctor that it was causing the fullness, though. The scan will tell, I'm sure. I'm told I could have Gastroparesis, which is a sluggish stomach. There are varying degrees of it depending on how fast or slow the stomach empties.
I'm also going to see a Family Dr. I think I need a complete blood work up. It hasn't been done in a long time.
Because of my history with the cyst and endometriosis I still have a nagging feeling that it's my ovary. Maybe b/c I've already been through that. I didn't have the fullness thing back then, though.
Good luck!
Lori
You might get checked for a Hiatal hernia, that can cause the "full feeling" when the stomach pushes through the diaphram.