When you don't allow fear to release itself, it accumulates in your body and begins to express itself in patterns of struggle and pain.
Your body is one of the most effective resources for releasing fears and blockages. Just as your body is capable of releasing physical things that don't serve you through sweating, urination, etc., it also has the power to release emotional toxicity.
If a gazelle survives a scary experience with a predator, the gazelle will intensely shake its body to release any residual fear or anxious energy. After it releases that energy, it goes about its day as if nothing ever happened.
This natural process of energy release is something that humans have learned to suppress. We have learned to ignore fear and hope that the energy just disappears rather than taking the natural steps of physically releasing the energy as soon as it's safe to let go.
Here are some tips for re-engaging your body's natural release of negative energy.