Hey there, i a 25 year old female, I walk home most days from work which is 45mins approx, try and eat healthy but also drink on weekends etc..My heart rate when relaxing feels slightly stressed sometimes heavy, sometimes it slows down and feels light other times it goes really fast and feels stuck on super high during cardio..and If I sleep on the left it feels uncomfortable untill i roll over. ANy ideas and does this sound serious? My bloods came back with slightly high iron, i used to be difecient, cant think of anything else