Piano Man Hi and welcome to HW,we are so glade that you have joined us.Now I'am so sorry that you son is suffereing from severe headaches I do understand what yourr son is going through.
I will try and answer you question's the best I can,I will give you a little back ground on me so you can better understand where I'am comeing from.
Ok I have crohns,ra,oa,sjerns syndrome and a new dx of ankylosing spondylitis as well.So I do have major fatigue as well.I all so have miragrain headaches alot as well and that may be the sorce of his headaches.I do beleive that if he has not had any test done to determan if he has a autoamuin diseas then you may want to talk to his doctor and see what he has to say
Lerie has gave you some good info as well so you may want to ask about
liver panel and all so if the doctor has not checked hi B-12 that may want to check for that as well that can cause sever fatigue as well.I wish you and your son the best of luck in finding what is causeing you son this pain.Please keep us up on how your son is doing.