my sister aboard she has fast heart beating because her neck is getting bigger due to that she finds it hard to breath and she also is losing weight. she been to see few doctors but she been told that they can not operate on her neck due fast heart beating she has  been taking all the tablets that she has been given by the doctors it has been going on for 9-10 months now.  but she is getting realy weak every day please can you help me thank u
Hello! Welcome on Chat Doctor! I passed carefully though your question and would explain that it is important to identify the nature of her disease. It can be a tumor. In such case, it should be operated as soon as possible. A thyroid dysfunction can not be excluded either.  A cardiac ultrasound would help examine her heart and exclude heart failure. Regarding the treatment of fast heart rate, I would explain that there are different treatment options for this purpose