Thanks for writing.
Yes it could be a serious problem.
You should be taking her to a gynecologist.
There is a possibility that her blood pressure is raised.
Symptoms of mental confusion
, blurring of vision, headache, chest and abdominal pain
with increased swelling over body and face occur in PRECLAMPSIA in pregnancy
due to raised blood pressur. If medical attention is not taken on time, it can lead to complications like convulsions(fits
So you should taker her to hospital immediately to rule out this possibility.