Feet/ankles are tense, & my big toe feels like it needs to be cracked, so i move it until it pops. i alwayswear sneakers, but wore flipflops yesterday?

Ok: That's really not a question so "ok" is the best i got my friend.

Flip Flop Unstable: When you go from a stable environment, like supportive sneakers, into a less stable environment, like flip flops you are using your tendons and joints differently. This is normally a passing problem, if you want to wear flip flops more regularly. But, i recommend starting with several hours a day of wearing less supportive shoes, and once used to that gradually add more time.