Hi ,your symptoms may be due to high blood pressure,kindly get routine blood investigations and urine
albuminsugar done to rule out hypertension.Such changes may be due to changing physiology of body
It may be due to multivitamins and iron tablets which could be easily managed by changing the brand of medicine
Next Steps
continue regular follow up with your gynaecologist and tell her your problems in detail.
monitor your blood pressure and other parameters
check for any swelling in feet, headache or other signs
take iron tablets with orange juice or nimbu paani(vit c)
Relax and do not worry as it could impact the child.
Health Tips
Try to have a good diet and avoid oily and spicy food as it is important for growth of child.My best wishes for a healthy baby and take good care of your health