The stress your body experiences from pregnancy would surely make symptoms of MG exacerbate if it was present. Many of the early signs fit so many other sources, one can understand why it is difficult to provide a difinitive diagnosis early on. I was seen early in my quest for a diagnosis by a specialist at an eye institute and was told ptosis and double vision can have many causitive agents. I was dismissed with a press-on prism! LOL To this day, I have to smile when I think of that appointment. I had done my homework and I knew that if the double vision moves and effect both eyes at some time, you must consider MG and I had experienced dv in both eyes during that year. I too found myself with a diminished energy level and thought I needed some vitamins. I experienced the facial muscle fatigue, limb weakness, trunk weakness, excessive saliva, difficulty breathing, and speech slurring. I was a text book case by the time I found the MDA Clinic in OKC, OK. As well, the local MG support group was a huge help. They have a quarterly newletter that keeps it's members updated on the latest issues. If you have a chapter near you, I urge you to get in touch.