T2 at what point do I do to the hospital

My sugar has been going up all day. I have been sick I have barely eaten anything . I had eggs and toast this morning . A hardboiled egg and apple , and for dinner chicken noodle soup. My sugar has gone from 330 this morning to 425 this afternoon to 480 now. I am not on insulin. Should I head to the ER? If I do what will they do?