So what meds or any are you on right now? Is it possible to go to an ER and just gets meds? Not get checked in as a danger to yourself? I am not med person, I'm a total nature girl but after bp episodes I've been so grateful for meds. I feel like if you went to an ER and said I have bipolar and am feeling manic and out of meds, they'd say ok let's get you on some. And seems they shouldn't check you in unless you're an immediate danger. But I really don't know. I have a fear of getting checked in against my will. That's horrible how that staff behaved you described. I left my last therapist cuz she was telling me other clients business - that was so weird and uncomfortable.
But if you are in danger truly, please just go check in and get the help. It could be an entirely different positive experience. Read some here, some people the hospital really helps them.