Hello,
I too experienced this decrease, I have dropped at least a size in the last week, I wouldnt have been so concerned except they were bigger last week and then dropped.. my beta looks ok and was quite sick yesterday...

I did jump on the scaled this morning and noticed I dropped 2 kgs so maybe it was from weight loss.

I have been eating healthy so maybe that is...

As long as they are still sore and u feel like crap in general its a good sign....