@13spirit_Rey I'm so sorry for the late reply, but yes, having weight on your chest is completely normal and it's considered a shifting sign! You don't have to count to just 100, you can count to 150, 200, whatever you want!
I do have a link in one of my chapters that is a link for a shifting script! When I find it I'll give it to you as soon as possible if you can't find it!
Hope this helps!