Hello Doctor Pls Help I Have Been On Laxative For

Hello doctor pls help
I have been on laxative for a long time ( Lactulose) I started to notice that my stool comes out as solid but disintegrates once it hits water. So I went for a stool examination. Here is the result
Colour : brownish
Consistency: semi soft
Blood : absent
Mucus : abesent
Pus : absent
Parasites ( worms/segment): absent
Trophozites : absent
Ova : absent
Cysts: absent
Pus cells: occasional/ H.P.F
Red cells: 2-5/ H.P.F
Epithelial cells: 8-10/ H.P.F
Vegetable cells : absent
Starch: absent
Neutral fat : absent
Please what could be wrong?
Thanks