I'm new to this site but after reading your story it sounds if the Lord was watching over you. I also had a whipple surgery in 1994, thankfully my was not cancer. After 14 years past the surgery I still have had a few hospital stays, what was left of my pancreous is very scared, so it sometimes it doesn't take much to set it off. Concerning you lack of energy, I was told by a oncologist that I work with that after doing a whipple procedure your insides are rerouted and you can't get iron into your system. I get to where I don't have any energy, headaches, and just can't go. I have had 4 iron infusions due to being anemic, and getting ready to most likely do another one. I hope that you find out whats going on and it will get better