I waited like the Dr said and went running today. Thought I would do a nice slow 5K, minimum 3.5K and take it easy. After 2K rib started clicking and discomfort started to turn to pain. So took a brief walk break and felt immediately better. Managed another half K until same thing happened. Only 2.5K in rubbish time - pah!
Suppose I just have to be patient
On the up side, I got out