Total number of subscribers on chicklet doesnt update

[Wokking Mum]

Hi!

The total number of subscribers shown on my Feed summary and on my
chicklet doesnt tally.

The number on the chicket shown in my blog has not changed/update for
quite some time. When I go to my Feed account summary, the numbers
there will sometimes change but still it doesnt tally with what is
shown on the chicklet.

What could be the problem? Please advise.

Thanks.

This is my feed http://feeds.feedburner.com/wokkingmum