Hi, for the past nearly 3 months my calves have been very tense. They dramatically tighten when I am in a stressful situation, when I am driving and even sometimes when I am just resting. I also get a bubbly sort of feeling in the muscles at random times during the day. After they have finished being really tense/tight, they get really weak, and wobbly. I have anxiety problems, so I get stressed about it a lot which makes it a lot worse for me, and I am fearful to drive as my legs feel like they re going to cramp. I have been to the doctor and gotten an ultrasound and they couldn t find anything. I was just wondering if you would have any ideas of what it might be?