I really need advice , I can’t get into my doctor surgery till late next week but I need to grasp some idea on how serious this is because I don’t want to ring the hospital if it’s something that can wait.

My belly buttons been having this nasty smell for a while & it’s crusty on the outside. I keep washing it with a q-tip and there’s yellow/green gunk.

then my belly has became really swollen around my bellybutton and it’s painful to press , it looks like a bump.

But today I’ve had such bad pain in my belly button area that I can’t walk straight.

Is this just an infection or ? I’ve ignored it for about 3-4 months thinking it’ll just go away if I keep washing it but now I’m in lots of pain when walking or bending or when I’m sitting it’s throbbing

Any help/advice would be appreciated , thanks.