Dear madam,I understand your concern.in my opinion you may be having gastrointestinal infection as you are saying u need to go for restroom soon after taking food.you can try the home remedies like taking ghee in food,taking cooked sago grains.but better you consult your ObGy for treatment as you may need antibiotics for the infection.but in addition to above you should take upto 3 litres of fluids like water, fruit juices, coconut water.otherwise you will be dehydrated and that in turn will result in urine infection,giddiness and weakness.but don t worry relax as this is not a serious thing.and have a happy pregnancy.