Twisted ankle

Remember that thoughts can be similar to a limp.

Once you twist your ankle. 

When most of the sharpest pain was gone your body made temporary adjustments to your balance so you could walk in less pain. 

As the pain diminished your leg remembered these adjustments and kept walking that way. 

Over a time you had little pain when walking so now you walk with a slight limp, because your leg is to lazy to retrain your walk to the balance before the twist.

If you don't like a reoccurring thought, stretch out the twist to regain good balance.