Troubled with bad digestion.
Dyspeptic.
Pertaining to a disordered stomach or dyspepsia: dyspeptic. "The woes that chequer this imperfect cacogastric state of existence." - Carlyle.
kak-[=o]-gas'trik, adj. pertaining to a disordered stomach, dyspeptic. [Gr. kakos, bad, gast[=e]r, the stomach.]