Yeah anything that still hurts after 8 weeks should be seen.
You can go to your GP, but they’ll likely refer you for an X-Ray and you’ll wait a while, probably weeks. Once they’ve ruled out infection/gout etc.
You can go to A&E, but you fall pretty short of what they consider to be the minimum for A&E, they will see you, but you’ll wait.
Minor injuries is the right place, just be clear when and where you did it, my Wife was almost turned away from one because she couldn’t pin point exactly when she hurt herself and the grumpy Nurse said “well, it’s not an injury the is it?” I think she was just being a dick, she changed her mind when Mrs “fancy specialist Nurse” Jay reminded her of what constituted an injury and not to take the piss.