Before thinking about approaching your family about the possibility of having an ASD, you're probably better to discuss this more with your doctor about whether or not you might be on the spectrum [not sure what sort of doctor you are seeing at the moment]. Maybe they can refer you to a specialist or can work with you on your symptoms.

As mentioned, ASD is a developmental disorder and depending on what sort of symptoms you have, some medication can be used to ease them - but there's no medication that's specifically tailored for autism. Usually therapy helps more with dealing with social situations and the like; the therapist can help you with social skills and how best to compensate. Or an OT can help if you have any sensory issues.

Also, you might have some sub-clinical symptoms of autism without actually meeting the diagnosis.

I guess what really matters is whether you actually do think you have some form of autism, and how far you are prepared to pursue it. Good luck with it either way.