Tight and sore muscles the day after a tough workout is something experienced commonly by many athletes. The tightness you feel the next day is referred to as delayed onset muscle soreness. The reason why the muscles become sore is cz the lactic acid build up in the muscle fibers. Here is a little...
Some probably think this shouldn't be posted, but since it's an advice blog then i thought "Y not?" Plus, having headaches can cause anger and stress which can probably get you tired..You can look prettier by smiling and being relaxed all the time, which is easier without having headaches.