My bowels don't feel like they are in very good shape.
ーMy intestines don't feel very good.
「腸の調子が良くない」
intestines で「腸」
ーMy bowels don't feel like they are in very good shape.
「腸の調子が良くない」
bowels で「腸」
ーMy stomach has been bad lately and my wife has been making soft food for me and everyone else has to eat it, so I feel bad.
「最近お腹の調子が良くなくて、妻が私のために柔かい食事を作ってくれるのだが、他の家族もそれを食べなければいけないので申し訳ない」
My stomach has been bad lately. で「最近お腹の調子が悪い」
I feel bad. で「申し訳なく思う」
ご参考まで！
カナダ 
