Karen,
Sounds like the spirit is stronger than the body -- but it's your spirit that will, and already is, making your body strong again! You are truly amazing. Getting on that trainer and pedaling -- what an incredible high that must have been for you. Just be careful, please, whenever you try that road ride!!! NO crashes!
Sounds like you've gotten some very good ideas on fabrics to prevent chafing. Hope one of them works for you.
Keep up the battle! You are already a winner.
annie
Time is a companion that goes with us on a journey. It reminds us to cherish each moment, because it will never come again. What we leave behind is not as important as how we have lived." Captain Jean Luc Picard