Hi, I'm 23 years old and a 3rd year dental student. The past 2 years I've noticed that my hands shake when I'm creating force with them or out-stretching them but not really a "resting tremor". It sort of happens with my neck when I try to keep it still standing up straight. I am experiencing random muscle twitches in my arm around the elbow, on the back of my thigh, and sometimes on my face. Sometimes these are just 1 twitch, or sometimes they continue for about 30 seconds. No pins and needles feelings. When I work out I shake quite a bit especially during bench press or doing sit ups. This has been pretty much ALL i've been thinking about the past 2 years for every second of the day because I'm in dental school and although right now I can work with my tremor because we fulcrum everything in dentistry but if it gets worse and worse I don't know what I'll do. I feel like its all I ever think about, and its caused a great deal of anxiety. Anyone else have similar symptoms to what I'm having? All I ever think is that I have parkinson's disease and that scares me to death. Please, if anyone is experiencing what I am, let me know.