Back Popping

Yesterday when i was doing top half squat i went to go under the bar from the pins and was pushing the weight up when my back sort of popped/ released? It didnt hurt but had more of a weak sensation so i stopped my leg workout after that point but went on to do chest with no pain. Today i went to do back and was fine until i started doing bent over rows and then my back did the same thing ?

Does anyone know what it could be or any clues?

The only thing iv done differently was on sunday i did 2 hours of yoga ?

see a chiropractor, if that doesn’t fix it then go see a doctor.