I've been having this pain on the left of my throat but the pain goes from my neck to my hear it's been 5 days and it hurts what could it be?

NEED TO SEE DOC ASAP. It could be something serious like an abscess in your throat that you can't see but might be able to feel. If you have any problems swallowing you need to see doc asap. It could also be something like sinus drainage and inflammation causing pain in the throat and ear. There is a tube that connects them. If the tube gets clogged your ear can't drain, gets backed up and can hurt.