there will be relaxation of sphincters of gastrointestinal system, which will lead to regurgitation of food and vomitings.
though some women get relieved of vomitings in early pregnancy in some it will continue till 7 to 8 months.
so you better visit your doctor once and take antacids and anti-emetics with her prescription.
it will help possibly.
it fumes caused some problem it might have resolved by now.
try to sleep in left lateral position with little head end elevation.
don't getup from the bed immediately after waking up, just move of limbs
for 4 to 5 minutes,
take biscuits like dry things to start with then you can go fro regular breakfast.