Im medically depressed. feel very lonely, having problem breathing not being able to eat or sleep and chest hurts.call my gp or go hospital ?

Go to the ER : If you are having thoughts of hurting yourself or are unable to care for yourself, please present to the nearest emergency room for assistance.

Depression: Call gp to rule out any medical causes to your distress. If you are cleared ask for a referral to a mental health professional in your area who specializes in treating depessioin. In the meantime exercise and confiding in others can be of significant help. Best wishes.