Luke,
I believe everyone replied with good, advice and support.
No one is treating you like a child, that is your own perception. Many disorders and even general health related issues have many of the same symptoms, people should not "self-diagnose", but should see a mental health professional, even a general practitioner too, just to rule out if your symptoms are due to any underlying health problem.
I'd also appreciate if you would reply to us here without an attitude, after all you made the post, and it is natural that you will recieve replies. Many have here are supportive, and have been dealing with Bipolar disorder, we know what it is like. It is difficult but fortunately there is treatment, making things more bearable (sp?) once a DX has been properly made, through an evaluation by a psychiatrist.
I'd suggest you contact a mental health professional and /or your GP.

DE