[Quiet Man Cometh]

Check your fluid intake too. I know from person experience that dehyration can cause cramps and headahces, particularly around the eyes for me. I have a hard time remember to drink enough water properly (as in something other than tea) because of having to restrict fluid in take for so long. Waking up the next day I can feel absolutely aweful. It gets worse when I'm stressed out too so that's always a possibiliy for physical discomfort too.