I know some of you have it way worse, and I am new here... but how do you know in earlier stages if it is a dementia or just changes because of discontent or even depression. A lot more hurtful things from a mild mannered man (44 years married) still said in non-yelling ways... many bad assumptions instead of thinking to even ask.. this includes thoughts of others thinking bad about him, etc. Even as I write this with his non-official diagnosis YET... it sure seems to be part of it, but the normalcy towards others and then the changes when just us, sure makes one wonder.