I'm An Insulin Dependent Diabetic. I Just Found Out I'm

I'm an insulin dependent diabetic. I just found out I'm allergic to the insulin that was running through my pump. My PCP took me off the pump. They have me on Novolin R on a sliding scale, however I feel very different very hard to explain. Should I go to ER or not. My endocrinologist moved to anyone state and can't take my insurance. I have an appointment with another one in April but I feel I can't wait because I think I'm allergic to the Novlion R. I need help