What Causes Dizziness And Nausea?

My fiance expiriences a lot of moodyness and she complain a lot bout head feeling tight she is also very much sleepy and has lot dizzynes and nuasia Now she wil for shure have stres just like me Coz we are for from eachother for now She is philipina and me belgian Plus in may we wil marry And she have chiĺd to take care of there But before she was also always there to wake me before my work coz there is 7h ahead to my time But now she sleep 3 h before me and is wake 2 or 3h afther me She sleep 13 to 14h a day MakiMy fiance expiriences a lot of moodyness and she complain a lot bout head feeling tight she is also very much sleepy and has lot dizzynes and nuasia Now she wil for shure have stres just like me Coz we are for from eachother for now She is philipina and me belgian Plus in may we wil marry And she have chiĺd to take care of there But before she was also always there to wake me before my work coz there is 7h ahead to my time But now she sleep 3 h before me and is wake 2 or 3h afther me She sleep 13 to 14h a day Making that the baby also have to stay in the parents care Also the mood can sudenly change And it get so far this days that our relation realy gets in danger But i want to know wat the causes can be medicaly seen Coz think we need to search in that way Read online alot but dont get much wisser to that Hope you can help kind regards Kevin