What Causes Sickness When Under Stress Along With Leg Tremors?

How do you go about seeing a doctor for possible anxiety/depression? Is a referral needed afterwards as I m concerned about confidentiality because I can t have anyone knowing what s going on (I m also worried that they ll say that there s nothing wrong and that its just me that s abnormal) Symptoms-feel like I m watching myself from above, feel like I m walking like I ve come off a treadmill, physically sick if worried about something/big event like Xmas, leg shaking, feel really low sometimes then will get a small piece of good news and will get overly excited, feel like I m acting but not sure how/when