Just in the past two years I ve been having a few strange problems, including shortness of breath, excessive dizziness and strange discolouration and pain in my legs. I saw many doctors who checked my blood, heart and lungs but nothing has come up, I even saw an internist. Just last night I was laying on my side and I was just started to get tired when suddenly my heart jumped and seemed to this against my ribs. It felt like it was twisting and grinding against the left side of my ribcage. It continued for a few beats and then it seemed like it stopped beating altogether. I got scared and felt for my pulse and couldn t feel it for at least a second or two. But then it started to beat steady again. After it returned to normal, I felt a wave of heat come over me and I started feeling flushed and kinda sweaty. I kind of want to tell my parents but they think I m being a wimp because the doctors haven t found anything.. Any ideas on what is wrong with me? Thanks