Referring to the home remedies I may tell you that please ensure that you have no significant physical illness which requires an intervention at the earliest. For this purpose consult with a doctor. For relieving anxiety try to engage in self evaluation, involve in some sort of hobbies, physical exercise and share your worries with close friend Or relative. If you are a believer try to tell your problem with god. For stomach problem avoid spicy food, take food at correct time. All the best.