After running 25k for charity i had doms, also 48 hours later my ankle swelled and became painful. is there delayed onset tendonitis? if so rice?

Delay onset : There can be a delay of the onset the tendon needs to get swollen and inflammed before you feel pain in some cases it sounds like you need an xray it could take 2 weeks for s stress injury to show but podiatrist or ankle specialist orthopod can be very helpful in getting the correct diagnosis and treatment plan usually riice is helpful but get a specialist to take a look thats a big run and many.