A few posts to respond to, first, they happen in the same body part consistently but in different sections of each body part. For instance, my arm has twitched on the left and right sides of my bicep. Also, the eyebrow only happened once, the time in school.
I work for a company that my father owns which involves landscape design. Instead of sitting in an office drawing landscapes like my dad, I am blessed with the opportunity to work with the men who DO the labor. This involves digging, grading, lifting, moving, pushing, pulling. Constant strenuos activity throughout the day. So that is what I do from 7:30 am to 5:00pm. On the weekends I play Ultimate Frisbee, which, anyone who has played knows that it is a sport of muscular endurance and requires constant running. For those who don't know of it, compare it to soccer. I also go on long bike rides to the beach although it is mostly frisbee on Saturday and Sunday.
I should have been more clear before. I don't mix the salt and water. Throughout the day I drink up to 3 bottles of water plus about 2 glasses of milk. I put the salt on my dinner and usually add more before even tasting the food. So no, I don't mix them together.
I am fairly sure that I don't have any pinched nerves.
I would like to also say thanks to everyone that is trying to help. I figured that this thread was going to get flames and jokes throughout. Thanks again.