Easy -- stop Googling symptoms and get back to your life. Get into therapy and start working on your anxiety. Here's what you can't find out on Google: what you might have by googling symptoms. The same symptoms can be a sign of hundreds of different things or nothing at all. You can find this stuff out if you have a good and thorough physician, usually. What you can find on Google: after you get a diagnosis and a treatment plan, you can learn from authoritative sites such as the Mayo Clinic site or the NIH site if your doctors are doing the right things or not. In your case, you're 18, and it's just unlikely much is going to be wrong at that age in the era we live in. When it is, you go to the docs and hope they can fix it. If you've seen a doc and they've said it's not what you thought it was, usually they will tell you what it actually is -- did you ask?