I'm a 21year old female and I've been having cramps all over my body over the past few days. The cramps occur mostly in my hands, but also in my neck, stomach, arms, legs and feet. I went to the doctor yesterday to get my blood tested to check my thyroid and vitamin/mineral levels. All the tests came back normal. I have had a bad shoulder for about 5 years now that is from weight lifting, I'm not sure if this could be a cause of my cramps or not? This is causing me to have severe anxiety about what it could be. Please help!