"i take vyvanse 30mg for binge eating and adhd. i  started taking it because i noticed that my binge eating was worsening. i am a very active 55yr old woman who works out 4-5 days a week. weight lifting etc, also my job is physically demanding. i starting taking 50mg 1st for about 6mo. i lost 20lbs i could barely eat. i started to notice i was getting cramps in my legs. all the time i have worked out i never had these issues. so i lowered to 30mg. i am not getting horrible cramps all the time in my joints and arthritis in my hands. i realize that age does play a factor but its my shoulders too, i just ache all over at nighttime. and my eating has cut down but i tend to now just want to eat sugary and high carb foods. kind of like a druggie."