so i have an original iPhone, and it has worked completely fine forever. yesterday i was using it, and i got a text from someone, and i sent them a text back. when they text me back, my phone vibrated in my pocket, so i took it out and tried to read the text but my screen won't turn on. it's just completely black. it's not that the screen is broken and not showing up, but i can't even do anything blindly since there's no touch. it's almost as if the phone just won't come up from sleep or whatever you would call it. if i call or text myself from another phone, it will still ring / get texts. just that the phone will not turn on or anything. has this ever happened to anyone before? what is the protocol? i was thinking about letting it die and then charging it again to see if that would help. i'm afraid that if i force shut it down, i won't be able to turn it back on ever. s.o.s.