After 10 years of this ****, the twitching is not a big deal. I get them all over and have pretty much gotten used to them. The one thing that I can't stand is the cramping/fatigue/weird feelings I get in muscles especially after a good workout. I have been dealing with this in my right arm since shoveling snow a few weeks ago. My arm feels fatigued and week and it runs all the way up my shoulder and down into the fingers. I've had this in my right arm 4 or 5 times since this started back in 1998. I can still do whatever I want with the arm it just feels so different. Does anyone else ever get this type of sensation after overworking a muscle group and have a long recovery time?