My heart goes out to you !! And yes thank god he went to the Dr for that canker sore...That is what I had too except it took me almost 7-8 months to go. And you shouldnt feel bad for having those feelins..you are going through this too! ANd I understand wanting to hide the tears..I was a pt not a cargiver ,but I am a mom ( of 5 under 14) and I didn't want them to see me cry or be scared, but having gone through it Myabe they need to see us ( not hysterical of course ) . As Vikki said everyone is different , I had no Rad or chemo ( yet and maybe not at all ) but my understanding from this site is that is gets worse before it gets better. You have def come to the right place for support and never feel as though you are being crazy or anything else..as much as we feel we are crazy we find that actaully that are feelings and fears are quite the Norm ! Best wishes and ((( HUGS ))) to you and your family !

Shar