Hello again, Kandicat!
I noticed that you posted your mixture as 80% PG / 20% VG. I just want to make sure here that you are aware that our mixtures are displayed as VG first, PG second. However if this is correct, you should certainly feel the throat hit. In fact, as I'm writing this while vaping a 20VG/80PG mixture of Banana eJuice (my preferred mixture as well), I am definitely getting a good throat hit.
As far as the feeling in your chest - well, I don't know that I can tell you anything on that. So long as I've been vaping, the only time I've felt it in my chest is for the first month or two after I quit traditional cigarettes. I just always took it as a good sign that my body was getting rid of all the gunk from the tobacco over the years.
Since you've been having a few problems with our flavors, I'd like to offer you a discount on your future purchases. If you're interested, please send me a PM with your last Invoice # so that I can create a discount coupon for you.