I was wondering whether it's normal to get jaw pain/fatigue after chewing soft solids. I had 4 first premolars extracted 3 weeks ago, and my ceramic braces and molar buildups placed 1 week ago. I'm not talking about tooth pain - I've grown accustomed to the slight tooth soreness/tightness, along with the lip irritation from brackets. I don't even notice it anymore!

However, this jaw soreness/fatigue is even more worrisome to me because I'm scared that it will blossom into full blown TMJ disorder!
I never experienced TMJ pain before but for several years now, I've experienced slight popping in my jaw when opening really wide (ie yawning) such that I'm often afraid that my jaw will lock, but I always catch myself before it does. Or, I push my jaw a little with my hand during yawning, which seems to help it keep from locking.
Should I be worried that when attempting to eat soft solids, I very quickly experience jaw tightness and fatigue?
This happens despite the fact that I cut everything into very small pieces, and I only chew using my molars due to the extraction holes in the middle of my bite, and the molar buildups preventing most of my teeth from contacting.
Should I just push through and keep on attempting to eat soft solids? Is this just what it means to have an "off" bite? My bite has never been bad before, but now that I got my teeth extracted and molar build ups, it's super strange to me...
Thanks in advance!!