She's been vomiting & having the most awful nappies imaginable. She was put on thickner for the chucking, & she stopped then she got such bad, bad runs. Turns out she's lactose intolerant & for the past month I have been giving her formula that makes her sick, forcing her to keep it down with the thickner, causing her to have the runs, generally just making her sick, in pain & unhappy. I feel so so bad. I should have known something was wrong, but I didn't.