Hi, You mentioned that this has been occurring for past 10 years. It will be good if you can refer to a general practitioner or a neurologist to find out whether there is a biological cause for your symptom. They might ask to to get some tests done. If they don't find a biological cause, then it can be psychosomatic and hence related to your anxiety. In that case, you should consult a psychologist to get a proper diagnosis for your problem.
Next Steps
Till then, try to keep a track of the frequency of the occurrence of this physical symptom on a daily basis. Also, try to observe if there are any other physical symptoms present when you face a stressful situation.