Hello! I have had alot of the same problems both of you speak of during my pregnancies. My stiffness seemed to get worse the further along I was. I too primarily have problems in my eyes. It was passed on to both of my kids. In 4 generations, only one did not inherit it. I recently did DNA testing and was diagnosed with paramyotonia congenita. I am the first in my family to finally get tested. We were always told it was MC by our symptoms. but having a mutation in the SCN4A gene is slightly different from what I understand. PMC mostly affects the eyes and upper extremities. So glad to have found this website and hear about others with the same conditions.