Hi, I suffer very badly from hayfever and sinus, and in recent weeks it has been particularly bad. I do not take antihistamines for this as I am on blood pressure tablets, and my dr has advised against it. Over the last few days I have had a flutter, or thump (hiccup) in the base of my throat and chest every now and then (maybe once per hour). It does not cause me pain, more like I lose my breath for just 1/2 a second. It is difficult to say whether it is my heart as it in my chest - but I feel it more in my throat. I am wondering if this is a common side effect of hayfever and sinus - or if it could be related to reflux...or any other? Thanks