I think I found the answer to my situation. I found it when reading a blog https://www.smarthomebeginner.com/traefik-2-docker-tutorial/
The tutorial is very good by the way, but one of the messages in there was that with cloudflare you need to set the domain SSL/TLS encryption mode to Full. “In addition to creating the DNS records, you will have to adjust Cloudflare’s SSL settings to avoid indefinite redirects.”.
The penny dropped and so i changed from Flexible (which I think is the default) to Full and lo and behold it stops the too many redirects situation. Hope this is useful to anyone else experiencing this situation.