The 1st thing I'd do is drop the sugar free chocolate & see if that breaks your stall. The sugar alcohols in them stall many people; you may be sensitive to them too. Secondly you're right the last 10lbs seem to take forever! Just try your best to be patient & stick with it. They will come off just excrutiatingly slowly (at least for me). Good luck & congrats on your loss so far!
God Bless,
Amy-Lynne