You took Simon Baron-Cohen's Autism Quotient questionnaire. This 50 item (scores out of 50) test is not used to diagnose, but to determine if an assessment is required. It does indicate the possibility of an autism spectrum disorder. "The average score from a control group was 16.4, and 80% of those with autism or a related disorder scored 32 or higher." This is quoted from Embarrassing Bodies. Neurotypical or "normal" people are the control group.

Does the feeling of being "odd" distress you? Do your autistic traits interfere with daily life, such as work? Do you need self understanding? Do you want to improve your communication and interpersonal skills? Do you have trouble making and keeping friends? If it is interfering with your life, than an assessment is worth it.

I suggest that you do some reading on Apserger's Syndrome and autism, before you mention it to your GP.

Family are often correct. My family always wondered about my different interests and weird behaviours. After I spoke with my mother, I decided to go for an assessment and was diagnosed at 34.