Steve

You young guys! Way to go. I agree with Eric (no surprise there) about headaches & dehydration mostly because I never had a headache from radiation or chemo.
I had a whole house humidifier which really helped the first time around plus when I could not work out anymore, I still went to the gym just for the steam room. But since mucositis is not too much mucous (which I thought it meant until I joined OCF) but mouth sores from radiation, I used seltzer water. It fizzed and burned a little but not only cleared up my mouth sores but also did help dislodge mucous.
You are doing great . But there is no shame in just letting this TX wash over you in the later stages. Not that it will happen to you, but I thought I was "tough" until my face fell off.
Keep the Faith
Charm