You were on finasteride for 4 years with no side effects, then quit with no further problems (just out of fear). You went back on it again for a short time, then quit and are suddenly having all these side effects? It really doesnt make any physiological sense. As I mentioned in my response in your other post, its clear you have been reading horror stories about finasteride. Even the 'crash' as it's described, you seem to be expecting it to happen.
Did you recently stop taking it, like within the last couple days? For one, it takes about a week for your DHT levels to return to normal. As people describe this hormonal crash, it doesn't seem to take place until 3-4 weeks after stopping. And not to mention the fact that this is an extremely rare occurence.
I really think everything you are posting is just driven by fear. I recommend you stop reading all about this (i'm guessing you have been to propeciahelp) and just move on.