I have just recognised that my Paladin has around 30k less HP (dropped from ~768k to ~735k HP unbuffed). Other guild members complain about that too.
I´m not sure what the reason is, but I have not changed my gear since I made my Paladin ready for ToMM and in the patchnotes from
today´s patch there is nothing about class changes on Paladin, or general HP decrease for players.
Although 30k HP seem to be a small amount, but in my opinion it will make tanking ToMM more challenging.
I hope it is just a bug that sneaked in and will be fixed soon.