I only have SOB after I walk not during I walk. I been walking for about 2 months but this just started about 3 weeks ago. The SOB do not come all time after I walk just sometimes. I also sing in a choir and after I sing i feel SOB. Now the palaps comes occiasional, I just feel my heat beat fast.
Your post says SOB, is that only when doing your walk, or with any physical movement? Have you been doing regular walks long? I hope so, it should be good for you in every respect.
There's noting in your post that sets of an alarm in my mind, but I admit I don't understand the sounds in you chest... your subject also says Palaps, do you feel an irragular or exter or missing heart beats? How are you sensing your heart beat? I have a hard time feeling or even finding my heart beat, so I use a stethoscope (purchased at Walmart for a few $$) or my chest strap athletic heart monitor. Without these devices I'd not be sure I have rhythm problems: I have AFib.