There are many people who feel tense by nature, at times worse than others. When I get tense I clench my teeth and it's only when I realize what I am doing that I start breathing to relax it. It happens. But it's just who you are, you learn how to relax and those tense situations are recognized and remedied. You are doing that, don't over think it. I am glad you enjoyed season 2 of Midwives, I am not sure when it starts up again here. I am looking forward to watching it. I will also look for the new series you spoke of and Happy St. Patricks Day to you too..
Thank you for letting me know what happens when you tense up. That is kind of you, especially since that's a personal thing to you. I really appreciate it. I have just had a look around for you and I am fairly sure that Call the Midwife starts 31st March in the US. Looks that way anyway and they are doing a repeat of season 1 before that in mid-march.