Hi Pete,

It sounds like you have an inflammation of the quads tendon where it inserts onto the tibia, possible due to increased stress.

I would suggest ice after aggravating activities and when you start running again perhaps try interval training (so run for a specified time e.g. 1 min and walk for a specified time e.g.2 mins). Start with more walking than running and then gradually increase the amount of time running. It just sounds that you've taken on too much too quickly.