here's a few other discussions on the subject
https://forum.tudiabetes.org/topics/bikram-yoga-cgm
http://www.tudiabetes.org/profiles/blogs/bikram-yoga
http://www.tudiabetes.org/group/YogaWithaCGM/forum/topics/is-bikram-yoga-compatible-with-our-technology-ies
https://forum.tudiabetes.org/topics/type-1-and-hot-yoga-1
and a related group
http://www.tudiabetes.org/group/YogaWithaCGM