Paige:

Yes, I have Becker MC, and weakness has always been a complain of mine, more so as I've gotten older.

My initial diagnosis says "atypical myotonia?" because I complained about intermittent weakness....and also because I described the warm up effect in a little more detail than the doctor had previously read, I think.

Type of Myotonia: Becker

Country: USA

My daughter (12) has Becker's and she has muscle weakness.

Type of Myotonia: Beckers

Country: USA

I have Becker's and yes, muscle weakness is definitely a major symptom that has been well recorded.

Type of Myotonia: Becker's

Country: England

Yup!

Type of Myotonia: Becker's type

Country: USA