My Wife Has Changed Her Character

My wife was diagnosed as suffering hyperthyroidism caused by graves 2 months ago.We have just moved to a new house picked by my wife.After only a week she said our marriage was not working and wants a devorce.She moved to a small terraced house within the next 7 days.We had not had a row and there is no one else involved as we just do not go out seperate. What I cant understand is why she is doing everything out of character.She love our kids and normally had a lot of time for them and her dog but since being diagnosed of hyperthyroidism she now has no time for them or her dog .She has gone like a hermit and is happy to stay in here house 24/7.She also blames me for all that went wrong in our lives.

Can somebody explain why my wife have changed so much since the diagnoses and will she change back before the devoce actually goes through.


David