Gallstones??

I've been feeling a bit "under the weather" as my Mother used to say. I had an appointment with my Dr. on Tuesday to get my meds refilled (high blood pressure) so I told him how I had been feeling. He commented on my weight loss and the fact that I had not gained any over the holidays, I didn't tell him I did but I've lost it already..lol.
Anyway... after an exam he says he thinks I might have gallstones. As he put it, "you're at that age". He gave me some medicine to take and said hopefully it will clear up my symptons, if not, I am to go back in 2 weeks for an ultra sound of my gallbladder. He asked me what type of foods do I eat? Beef? Fried foods? Dairy? I told him NO beef or fried foods and very little dairy that I had been on WW for the last 9 months and eat mostly chicken and fish. He then explained to me that when you eat a low fat diet your gallbladder does'nt work properly, it slows down it's production I think is how he put it.
Of course I came right home and got on the computer and looked up gallstones and gallbladder disease. Seems a low fat diet is what caused my problems, but also being overweight causes it too!?? So now.. what do I eat? If I eat fatty foods it will cause me to suffer the pain, if I don't eat fats I'll lose weight but my gallbladder won't function correctly and also cause me the problems I've been suffering! I've been searching for a website that will help me but all I seem to find are the ones that want to sell me their formula's for eating right to have a healthy gallbladder. There are also products on these sites that claim their product will "clean out" my gallbladder....but of course it's only $160 to start off.
I went to WEB MD and found out a few usefull bits of information...but I need more!!
I want to find a list of foods I can eat.. and still loose weight that won't make me sick. I can't eat veggies.. well I can but I detest all veggies except corn, squash and green beans. Living on fruit is not an option either. Anyone have any suggestions??