This is a comment not a question. I went in for a check up last week and informed my PCP that about a year ago I started having this feeling in my throat. I told him I felt it was connected to my heart. He said it is common for those that experience atrial arrythmias to have a feeling in their throat. From other symptoms, hair falling out (all over, not in patches), feeling of coughing, and gagging at times, insomnia, along with the irregular, racing, and pounding heart, he wants to do a thyroid ultrasound to check for cysts or nodules. I have my levels checked every 6 months or so, but I'm always "in clinical range." I'm really hoping to get some answers soon. I've always thought I've had thyroid problems (I am 38 and still weigh 99 pounds. I can't gain weight for anything), but didn't think about nodules, goiters, etc.