What Causes Dizziness After Waking Up And Feel Off Balance?

Hi Doctor...I have just woke up to dizziness and off balance..Im 36yrs old ,in excellent health...54kgs/5ft2in...i keep leaning right when i try to walk and my neck and head feel odd...I was on a 'merry-go-round' for 2 turns yesterday and been feeling off ever since. This morning is pretty bad...I attend a chiropractor....have had bad problems with hips/back since the birth of my daughter 7 months ago....could it be just that?