Advice needed on talking to a doctor about social anxiety?

Well, you shouldn't be scared a good doctor won't ever make you feel bad and listen to your concerns. It's good you are trying to help your social anxiety. If you feel like something is wrong and espcially over a few years then you're probably right. Anxiety of any kind is stressful and draining and can cause other health issues if not helped. Maybe they'll give you meds but also counseling to help manage the anxiety you feel and hopefully overcome it; meds don't always help everything but can help lesson the symptoms. Maybe you can take a few moments to write down how you feel your social anxiety has affected you both emotionally, and physcially these last couple years, when you feel more anxious, and what you do try to calm yourself when you feel your anxiety is too strong. Just so you have you thoughts clear before going to the appointment. Don't feel bad for getting help, or worry about what others will say. You're doing something really important for yourself and taking a step to feeling better. Also, some things I've learned that help anxiety for myself and even from other people I've met is finding things that will relax the mind. I think many people with anxiety problems know they are people who also think too much and overanalyze everything. You're always thinking and it can be draining. Maybe also try other things like meditation, yoga, journaling, listen to calming music, drink certain types of tea meant for calming, try aromatherapy. Good luck and hope you feel better soon.