Character HP decreased by 10K within a minute

My character HP was at 682K when I finished my dailies at Uldum today 5AM server time (Seraline-Zangermarsh). When I hearthed to Boralus, my HP dropped to 674K! I was not in a group either time; no add’l buffs except for Draught of Ten Lands which I still have right now. Would someone please take a look at the log behind the scenes and re-instate my HP back to what it was? Thanks in advance.