Although I was able to find some research about a blood test for anxiety that involves checking for high levels of acetylcholinesterase (AChE), I didn’t know it was available in the U.S. I’m curious about what test was done and how it was able to pinpoint the type of anxiety disorder. I wish you could provide that information.
Generally, blood tests are used to check whether there is an underlying medical condition that is causing the symptoms of anxiety. Thyroid problems, diabetes, heart disease and irritable bowel syndrome are among the medical issues that can present like anxiety. If you are medically okay, the doctor might then refer you on to psychiatrist or therapist.
If you saw a psychiatrist who diagnosed social anxiety, then he or she might have suggested medicine to reduce the symptoms. Your letter suggests your parents didn’t agree.
However, that doesn’t mean you are stuck with social anxiety. Life is full of stresses. Although medicine might reduce your anxiety somewhat, no medicine will completely solve it. You need to learn ways to take care of yourself in social situations so you can make friends, do well in school and in jobs, and generally manage the stresses that come with being around other people.
You might be more successful in talking with your parents if you started with a request for some therapy to help you learn more ways to handle stress. If the therapist agrees that medicine would help your treatment, the therapist will help you talk with your folks about it and will make an appropriate referral.
I wish you well.