Recently I feel so tired and always losing sleep. My irregular heart beat is back again. My shoulders feel heavy. Actually, I got extra heart beat (Sves) seen July 1, 2009 and last for 2 weeks times. The maximum is about 20-30 times a day. It happened 2 times before during the last 3 years, but I found it getting more frequent. I did a few test like, ECG, 14 days loops recording, Ultra sound Cardio Scan and Stress test. The results all seems normal excepts occasional SVE occurred. My doctor said they all not support that I have a heart disease. Maybe, I', just having anxiety. I still worry and the symtoms not go away yet. I'm 47 years old female with my uterus removed 10 years ago. As my doctor said, my ovary still produce hormo. I would like to have your advice. Thanks.