Hi smantha101,
I agree with ethanryan. You need to speak to each of your parents seperately. Make yourself some notes on what you want to say to each of them & what needs to be said to both of them. This is so that you don't get distracted by them changing the subject - they are not used to listening to you in this way & the idea will take some getting used to. Tell them how all this upset makes you feel - insecure, torn in two, etc. & tell them that you cannot take any more - all this is their problem & they are not to try to score points off each other using you. You are the 'child' & they are not behaving responsibly like 'adults' should! But don't try to make them in the wrong, stick to how you feel & what you would like to happen to change things.
Remind them that you have the needs of a daughter, to be supported, etc. & that by behaving this way they are both letting you down.
If you cannot get any where with this talk to your doctor, Yes, they will listen to you. Yes, they will be able to refer you to services that can help, ie, counselling for you on your own plus family counselling to sort out your parents. Don't worry, you won't be taken into care & your parents won't get into trouble but you do need help getting them to take your feelings seriously.
I hope things get better really soon - thinking of you.