question: I have had anxiety fir years. I lost a son and husband. I only take zanax for anxiety/panic attacks. For several months now, I wake up with nausea, shakiness, pain in between my breasts- bone and have a hard time getting a deep breath. I also feel more tired than I ever had. Its better at night. I sleep well with .5 mg of zanax. Also had diarrhea only once in the am for 31/2 month until I got some liquid iron which I took for 3 days and now thats gone. I am beside myself and dont know what to do. If its from anxiety or something physical. I had completel blood work last Dec and a chest xray last month-all normal Please help