I can't get all tweets of user under 3200


i try to get my tweets using https://api.twitter.com/1.1/statuses/user_timeline.json with PHP. My account have 1017 tweets so i set the count 200 for 6 pages 200*6 =1200. Yesterday i can get the all tweets using count 200 for 6 pages but now i can’t get all tweets it doesn’t work return only 3 tweets total but when i set the count 100 for 12 pages return 286 tweets total. This is a normal thing or i have a mistake?