The diziness may be a result of decreased blood pressure or decreased sugar levels.
For stomach pain take Antacid
such as Tab. Zantac
150 mg twice daily for 03 days.
For diziness and nausea
take Tab. Stematil twice a day for 03 days that can treat both nausea and diziness take plenty of juices and milk.
There is nothing to worry about you will ba fine in a day after taking taking these two drugs.
I hope I am successful in solving your query If you have further you can ask me
Take care and good rest
Dr. Azhar Sattar