Involving family before assessment / 27yo female

Hi, I’ve been wondering for the past 4 years about the possibility that I might be autistic and I’d like to seek professional support.
My parents are not very keen on me seeing therapists, I think because they are worried about what it says about them as parents. I want to stress that my parents have always been very good and have made me feel safe at home growing up, and it’s really the outside world that wasn’t. But I’ve tried to talk to them a few times about autism (it runs in the family by the way) and they’ve initially dismissed me, but then started acknowledging that I wasn’t a « typical » child without really wanting to go into details. 

As an adult I know I don’t need their permission/support, and I have lots of memories from my childhood that support why I relate to the experiences of autistic people and to many of the diagnostic criteria. But I know that since autism is a neurodevelopmental condition, my parents might have very good insight into what I was like as a child that would be valuable to bring with me if I want to get assessed, and could even be needed by professionals. So I was wondering what the community has to say about specific questions that I could ask them to narrow the conversation down for them? And have you experienced the same with your families? Mine are abroad so it would be difficult to involve them in sessions as they could not come with me/be on the phone etc, and they would not be comfortable with that. Also there is a language barrier, and understanding of autism is not as open where I come from, so speaking to professionals there would not be the best option either. 

Hope someone can give me some pointers, obviously if they don’t want to help then I guess they don’t have to.