Rapunzel

I'm not sure you're getting enough calories. You should be doing protein drinks and that would be more than 100 calories. Check, but you should also be able to have milk. Tomato soup helped me get some energy back too (Trader Joe's has a fab T. soup in a carton). Right now its about healing not calories. Lack of calories and protein could be making you more exhausted too. The bike might be a bit much, ask your doctor. I wasn't allowed to do anything but walk and that really helped to move the gas out. Hang in there!

I take a bit of Protein before a workout for a little energy boost, then after for recovery.
BUT I never confuse eating along with exercising. My goal has always been to burn fat and glycogen, not replenish it.
I'm currently working out 2 hrs a day at 5:30am, 5 days a week.
Run for 30 minutes, then weights, finished with 20-30 minutes on the elliptical.
30 minutes in the sauna, then 15 minutes in the whirlpool.
I go through 32 oz's of Water during this period.
Did I mention I am 60 years old and a heart attack survivor?

Congratulations to all of you. Hopefully in early August I will joining you all.