I think this whole thing has been blown way out of proportion and stories reported in trashy magazines and "newspapers" like the Daily Mail are being taken way too seriously by a lot of people. For example is there any proof or actual real sources saying that she "speaks to inanimate objects".. I doubt it.
Scrolling down her twitter she looks and sounds perfectly fine, she doesn't even look unwell she just has a new image/style.
The video was odd but that could just as easily be a joke, or she could be drunk. Fluttering her eyelashes stupidly and rolling her eyes does not mean she is "twitching from drug abuse".
I just can't take the whole thing seriously yet, Amanda Bynes would never turn into the wreck that she's alleged to be. Reporters love a good breakdown whether there really is one or isn't.