Weight loss and motion issues. Loss.

Two years back I was diagnosed with Bp and I was given with BP medication and now I am taking tazloc 20 and prolomet xl 25 in night and BP is perfectly under control. Whereas post bp medications I had a severe stomach upset and loose stools after an outside dinner. after that I had gone through many test like endoscopy and biopsy, food allergy panel which had mild allergy on milk and egg. But my loose stool issues have not sorted out, I have stopped taking milk but curd on a regular basis. Egg rarely. Outside food rare. Very  rarely non veg foods. On all these efforts stools were controlled from four times a day to two or once a day still loose stools. But my weight has gone down from 69 to 62 in two years, during the start phase it was reducing.No improvements, my appetite is good and eating sufficiently I beleive but work style is bit off active work. All kind of blood test have been done including crp levels. Everything is normal. Still I am not able find the reason for weight loss.