I think some people might be unsure and come here to find answers from people who are obviously going to know first hand, especially if they need some support but are not able to get to a therapist or doctor straight away. Others may have also been wrongly diagnosed, some people are here not for themselves but for others, and some may be suffering from something but then realise (like I recently did) that there maybe something else they are suffering from on top of already existing conditions.