I have little energy almost all the time and frequently have a headache too. I constantly have what I call a stuffy head and sometimes it goes into a full blown headache, big ones. Never have any energy and when i do things it really takes it out of me and everyday I have to sleep a little or lay down for an hour or 2 in the day. This has been going on for a very very long time and although it isnt getting worse I know it needs sorting out. Any theories?