I would park the bike and recover for a while. I'll be doing that this week. Eating greasy food has finally caught up to me (will I ever learn?).

I had a dietician tell me once "eat for performance". That has always stuck with me. Stop thinking of gaining weight and eat to fuel your workout with a careful eye on portion size. Your calorie range seems to be adequate, but I would say find someone that specializes in sports nutrition. Not sure what they call them over there (dietician? nutritionist?)