Sudden throbbing ankle/foot pain

[Paddingtonthebear]

Out of nowhere tonight my right ankle/foot has just started throbbing with pain. Doesn’t get worse if I put weight on, but doesn’t ease off if I rest. Ugh. I haven’t done anything to injure it. Any ideas? I’m sat with it elevated and it’s mainly around my ankle but radiating up my calf.

I’ve recently made an appointment to see GP as I have some other aches and pain and suspect I have arthritis but have to wait 3 weeks for the appt.

Is it on the bony part at the back of your ankle and does it hurt when you press you down on it with your thumb?

No it’s not. It feels like it’s more inside / around the ankle bone and across the top towards toes

It could be Plantar fasciitis - NHS (www.nhs.uk).