Is it just me

Is it just me or does anyone else's points disappear after they get to the 3000 mark and go to collect then points drop by 200 like you don't have them also is it just me or does it take many more steps to get a point 8 mean I was collecting a 5 dollar card at least once a month now it takes me 3 months to get 5 dollars and I haven't changed anything I do with the app or with my walking please say I'm not crazy