my mother's reaction

My mother age 47 is severely overweight, she is 5'3 and is 200 pounds. Besides that she sufferes from bipolar disorder, migraines, vaircose veins, in her feet, fatigue and Psoriasis rash on her elbows. she had 2 hernina surgeries in her lifetimes, and small breast tumors removed from her breasts. she is on Lithum medication for the bipolar disorder, and imitrex for her migraines

She was afraid to use the herbal cleansing program, so I told her to eat fruit salad every morning. In the afternoon to eat veggie salad, whole wheat bread, and lowfat cheese, and 1 egg once in 2 days (we are not vegetarians) and at the night eat lightly steamed veggies, brown rice, raw salads

in the 2nd day of her diet, she started haveing cramps and diarrhea and watery diarrhea. besides that her bulkiness become less, her emotions got better. and she didn't get her usual migraines. she got more energy, lose some weight, But she now is freaking out about her cramps and watery diarrhea.
I told her to stop eating fruits at least an hour - 2 hours before lunch, and not eat fruits same times eating veggies.

What shall I tell her about the cramps and diarrhea reaction?
one thing for sure, she will refuse to take the herbs, she is too afraid!!!