I feel like a lucky one. I never stretch or anything & never any issues. Proper hydration will allow toxins & such to flush out properly, i find that deep breathing can aid in this (helps your lymph system circulate). If tissues cannot do their thing properly they will give you a sign in the form of pain, swelling etc.

Just try to loosen your torso up, ... twists, toe touches etc...

Hope things improve!

- Andy