I have a question that I haven't been able to find an answer to.
I've only recently been diagnosed with anxiety, so I'm just now really putting together slight physical symptoms that could be related. The biggest of which being that when I do any form of precise, lengthy, or tedious task, I get incredibly frustrated easily and then whatever muscle groups I'm using tense up.
An example of a task like this would be aim training on a video game, writing a lot of sentences, or sewing. I don't have to be bad at the task I'm doing for it to feel really frustrating. And the different tasks all increasingly make me tense up at their own rate.
The feeling of tension is more like my arms are slightly flexed and are tight, and if I attempt to continue the task while I have a strong feeling of this, it becomes incredibly uncomfortable. 
What I'm mainly curious is if this sounds like something people with anxiety commonly have or if I'm mistaken it with something unrelated to anxiety.