Hello! Anxiety is severe disease and it takes a lot of time to cure it. It likes to recur especially when there some stress or new situation appears in someones life. And it influences whole body nervous system, that is why there can be symptoms you have mentioned. However anxiety diagnosis can`t be made unless all other nervous system affecting diseases are ruled out. It is because anxiety may be just a symptom of a disease. Here are just some of disease that can be a reason of anxiety: thyroid diseases, heart diseases, adrenal glands disease, magnesium shortage, B vitamin shortage, caffeine overdose, hypoglycemia, bacterial-related IBS, peptic ulceration and many others. Some test that should be performed before anxiety diagnose: blood tests with liver tests, thyroid tests, pancreas tests, infection tests, adrenal hormones, ions, ECG, abdomen ultrasound, endoscopy, stool tests and urine tests. IBS is often related with anxiety. Moreover IBS can be caused by severe bacterial infection. It is worth to try Rifamixin in IBS treatment as it gives many positive responses. After all test will be negative, it is advisable to visit psychiatrist. SSRI drugs may be necessary and have a great results in anxiety treatment. Psychotherapy gives also many positives. Hope this will bring some hope Take care