Problem Of Indigestion, Vomiting, Feeling Nauseated, Occasional Stomach Pain. Blood Test Normal. Solution?

I've had heart work done everything came back fine I do have high blood pressure I am also on enforce med my doctor has put me on . Also had lots of blood work and so far everything has come back fine. Not to long ago I had a lot of indigestion it seems to gone away sometimes I vomit just a little then there are days when I just feel nauseated my dad says I have some signs of ulcers and digestion problems sometimes my stomach would hurt when I eat even the slightest things I had a sonogram to check gallbladder but no problem there either. I do have high hernia I was told and I do have a budget in the stomach that hurts sometimes. I.m at end of my rope here. I told my doctor about a saliva test I took for the Candida yeast and he didn't seem to care to have me tested I read about that test on the computer. I don't know what else to do.