I have accidentally developed an eating disorder... I had a history of substance abuse so when I would take (pills) I didn't eat much. It is now about 6 months later and I can't eat. I realized it was a problem when I started to get weak and I was told my body was now eating away at my muscles. Well starting two days ago I started getting the heart palpitations ( so I read ) the pain has increased in my chest, and as of last night I have had experience with shortness of breath accompanied with all the other symptoms. (heart jumping, pain in chest upper muscle spasms/pain) My mother would like me to go to the ER but I'm not sure if it will be worth it! Please give me advice on if the ER can actually help.

How old are you? What about going to a doctor in his office (soon)?

The ER is definitely where you should go. Heart palpitations and shortness of breath are warning signs. Do as your mom wants, please.