Stephen:
Thanks for writing in to us. We’ll post an article of specific interest to you professionally very soon. Keep your eyes out. The transition from a none weight bearing sprt like cycling to running often causes consternation. You have good central adaptations but do not yet have good peripheral adaptions specific to running. Those will come. Just be cautious abotu adding running volume to replace cycling or you may find yourself in a few weeks. Running is not easy on the body like cycling is.
Good luck and welcome.
Scott