Why mouth ulcers are seen in patients with stomach issues like constipation and foul smelling gas,and during lack of water intake?holistic physicians keep talking about heat in the body makes some people prone to apthae. what is all this please?

Ulcers: Aphthae also prevalent in patients with normally functioning GI tracts, although may be more prevalent in those with gastric disturbances such as GERD. I tend to discredit articles such as "body heat=aphthous ulcers" because they are usually not well refereed research projects and usually not published in well referred journals." For the most part holistic treatment is not mainstream for a reason.