Hi Cenkay, I'm sorry that you havnt been getting any responses to your post, but please let me assure you that I have spoke to many from here and another board (anxiety) that have experienced this sensation. I do not know for sure the cause for it, but from what my docs have told me and from others, it seems to be closely related to anxiety more than BFS, like I said, I have no proof, but I can confirm that when my anxiety about my condition improved, so did this symptom. And now if I become tense or upset I feel it again but to a much lower level than it used to be. I know you are getting alot of freaky symptoms rite now, but please believe me and others on here, it does improve and some symptoms go away all together once your anxiety is in check. Just dont think that because others arent responding on here that you have something different, thats not the case. You will be ok, promise.Take careRobynn )