Should I be angry that my mum hasnt taken me to hospital..?

Where's your dad? My gf has the same issues with her mom, she's always angry at her and so am i. There's nothing we can do though, if you get seriously hurt then it's on her and she needs to deal with it, hopefully your neck problem is minor it may hurt but ive had pains in my neck like that to the point where i couldn't move my shoulder or even get out of bed. Try finding a comfortable position where the pain is a little less painful. If it gets worse then she'd better take you, it's not right for her not to care.