Newbie - tight chest driving me nuts!

[diffster]

My husband and I have been talking about moving and I was anxious about leaving because of giving up things we have been committed to and letting people down. So since we have told some people we are thinking of leaving, I have had this *tight feeling in my chest*. We have had a lot of relationship problems in the last 12 months and have been hurt badly by some people who were "good friends". I have always struggled with fear and anxiety on some level, especially of other people and their reactions of me. I have always played it safe and kept the peace. But since last year when I began to speak my mind, people have reacted badly and I have ended up with this! It makes me doubt our decision to leave and look for a better life elsewhere. I wonder if this feeling is an indication that I am doing something wrong.
Does anyone else here suffer from this constant tightness in the chest. I am sure it is anxiety related, but I have no idea how to make it go away.
Any suggestions? Should i go on medication, or look for counselling or what?