I just had this same thing happen a few weeks ago where my weight tracker said "You're losing too fast, please slow down." The tracker doesn't take into account a. your starting weight, b. your current weight, c. how much you have to lose.
Don't worry about it, you'll be fine.
Eating your weekly points is fine. I usually find when I eat all my daily, weekly and activity points I lose more weight. This varies from person to person though. I'm doing cycling now where for 2 weeks I eat only my daily then for 2 weeks I eat them all so it keeps shocking my body.