Hi all. Lately i have been having a feeling of something on the right side of my throat on the inside. I seem to have to constantly clear my throat, and is becoming very irritating and annoying. I dont seem to have any problems swallowing. I have recently quit smoking, after smoking a pack a day for about 18 years. Now I seem to have this sensation of breathlessness but only when I lay down or are at rest, I seem to have enough breath but it is a weird sensation, and is starting to scare me alot, and sometimes throws me into a panic. I have been diagnosed with a hiatal hernia recently, and do have a lot of acid problem. does anybody know what might be causing my lump sensation in my rght throat or my breathlessness sensation when im resting or laying down? The breathlessness sensation almost feels like im being smothered. Any advice or input woud be greatly appreciated.