Sheila, A couple of things to think about would be blood work, is he anemic or is his white count still low? Is his blood sugar okay? Is he depressed? (That alone will make you lethargic!)
Coffee might help, but if it only masks the real reason for his tiredness, it wouldn't help him in the long run!

Hope he's up dancing soon,
Andrea

SCC L lat tongue,Dx 9/15/05 T1N0MX L MND and L lateral hemiglossectomy 10/03/05. Recurrence 11/15/06 2nd surgery 12/04/06 hemiglossectomy 3rd surgery 01/15/07 tonsillectomy Radiation 01/25/07 to 03/08/07 3-D/CRT X 30