Thanks for writing your query.
Symptoms mentioned by you are indicative of anxiety. You can take antacid like Omeprazole
20 mg along with Domperidone
10 mg early in the morning for relief from excessive gas and burping. You can take anxiolytics after getting yourself examined by a Psychiatrist
. Take medicines under medical supervision only. You can have an ECG done to rule out any cardiac cause.
Take care of your sleep. You should have proper sleep especially at night. Also do yoga and meditation
. These steps will help you in relieving from anxiety.
I hope this is helpful to you.