I've been unable to get diagnosed for anything despite struggling with mental health for years. I've done a lot of research and have a possible answer, but, I dont know if its overstepping anything if I say this without being officially diagnosed.

For some context, different things run in the family which I have symptoms of. But, I dont want to say I have these things without a diagnosis if its overstepping. And I have been told by many people different things. Some say it's okay if you do the right research, and others say that self diagnosis is a bad way to go at it. 

If anyone is able to faurther educate me on this, please do.