How can generalized anxiety disorder show in a birth chart, and what can I do about it?

My name is Rhea, and I was born on 12th June 2001 at 9:30 AM in Bangalore. I recently thought that I have not been able to relax my brain at all; I worry about everything, even about minor things, and in some cases, I feel anxious or nervous without any apparent reason. I heard this could be generalized anxiety disorder, but all the medical reasons sound so hard to understand. Is it possible to tell me in a few ordinary words about it? In addition, in terms of astrology, can my birth chart explain why I may be feeling this, and are there any solutions or suggestions that may help me relax and handle it in a better manner?