DISCLAIMER: I am in no way, shape or form indicating that just because a person does not have a formal diagnosis, they do not suffer from the condition. I am just questioning the use of terminology in such cases.Diagnosis is, by definition, the conclusion a medical professional reaches following assessment of the patient. It's a piece of paper signed by a doctor; a code used in your medical notes; a formality. Therefore, the concept of "self" diagnosis is an oxymoron, unless you happen to be a qualified medical/mental health professional. Even then, it would be impossible to make a diagnosis of ASD based purely on your own imput, which is likely to be highly subjective.
I dislike use of the term "self diagnosis" because it implies validity and seems to be cropping up more often as a kind of "alternative" to legitimate diagnosis, even though they're not comparable at all.
Terms I prefer:
- "pre-diagnosis": the person acknowledges they may have an ASD and is in the process of seeking a diagnosis
- "undiagnosed/suspected": the person suspects they have an ASD but is not seeking a diagnosis
- "provisional/working diagnosis": the person has been told it is likely they have an ASD (by somebody who is qualified to make that judgement) but other conditions have not yet been ruled out
Under these conditions I would class myself as having a working diagnosis.
What are your thoughts?

People say that I'm probably in the very early stages of "provisional".
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THINGS I LIKE
Parasaurolophus, Plesiosaurs, Dinosaurs, Pterosaurs, Music, Tuna, Chocolate milk, Oreos, Blue things
Parasaurolophuscolobus. Parasaurcolobus. Colobusaurolophus.
....And Nunchucks are my friends.