Well I am sorry to hear about this friend. It sounds anguishing as I recognise it from my own mental health history.

Remember though that first and foremost we cannot diagnose here. That is for a professional. And that is what I encourage. Even seeing a family doctor is a start and better than nothing. This friend clearly needs to do this. Ignoring this may invite worse to come.

In the meantime, your friend seems self-aware. That is indicative that what she is experiencing isn't full-blown mania. How is her irritability level? Does she flit between one thing and another? Unable to concentrate on one thing while multitasking? Is she spending a great deal of money with little control? And would you say she is engaging in high risk behaviour including hypersexuality? These are the hallmarks of mania. The depression or depths of despair tend to be just as extreme. What she, or you, might want to do is write all of this down. Arm her with as much information as possible for that appointment with her doctor.

Address the issues of healthcare problems as they arise. Encourage her to still see her family doctor and not let fear of no help being available to prevent her from at least seeking out what is.

What a terrific friend you are.