Problems post 13th flush

I posted a few days ago re the results of my 13th flush when I had no large stones but thousands of tiny, yellow balls, just like lecithin granules. I felt a bit off the day after and then the 2nd day after the flush I had an invite to a meal out. I have had stomach (epigastric) pains and headaches for two weeks and felt unwell but wasn't sure if it meant time for another flush or I had a bug. Anyway, I started to feel better and decided to do the 13th flush. Day 2 I had some more epigastric pain and wind and the day after the restaurant meal I was in agony with epigastric pain and a very, very sore upper stomach (plus wind). Day 3 in the afternoon I saw the doctor, after a sleepless night. He said he thought it was a recurrence of the gastritis I had 3 years ago and prescribed antacid medication. However, today the pain in the upper stomach is less and moved lower down and I am sore in the liver area. The doctor had said my symptoms were not typical of a bug or virus. I am finding it difficult to work out what is going on so I don't know what to do. I am not taking the medication because I am not at all sure it is gastritis because it has moved down to rib level and on the right. I don't want to do another flush because I have felt very rough. Does anyone have any advice or suggestions? I would really appreciate it if you have. Thanks