This is interesting because I have Becker's MC as well but I don't seem to have any susceptibility to the cold?

In fact neither the heat nor the cold seems to have any impact on my MC!

I gues it's just one more of the curious aspects of this condition?

Type of Myotonia: Becker's

Country: England

It seems as though there really are very few constant symptoms of this disease. My Doctor was surprised that I am skinny like a toothpick and that I don't have the big bulky muscles that are described in the literature.
It does make it difficult to figure out.

Type of Myotonia: Beckers

Country: USA