I’d agree, over loaded is easy to do, sprung or “bent” axles easy enough to do on our great pothole roads….
Check your pressures, then do some measurements. inside to inside should be the same front of the tires and back of the tires. If not, your sprung or bent. If they look ‘bow legged’, your over loaded. They shouldn’t squat outwards.
Hope you understand this and hope it helps….