I'm in the pre op liquid diet phase. I have a lot less energy than I normally do. I can't workout, I struggle to work my whole day plus commute without having to close my office for a nap. And it doesn't help waking up every couple of hours to use the bathroom. I'm tired! This will continue post surgery but I'm wondering when it will return to normal. 2 months post op?

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Personally, it took an entire 6 weeks post-op to start feeling 'normal' again. I was in a post-anesthesia fog for those weeks and felt unmotivated to do anything other than sleep and use the restroom.

I did not exercise during the pre-op diet...at all. You are not consuming enough calories to properly fuel any decent workouts, so your body will respond by breaking down your stored fat and muscle. You will also feel tired and depleted of energy. The last thing you want to lose is precious muscle tissue.

The only type of exercise I would do during the pre-op diet phase is low intensity activities such as leisurely walking or slow bicycling. Anything moderate or high intensity isn't the best idea right now.

I was MUCH more tired in the pre op diet than I ever was after surgery. I was in pain but felt normal energy wise by 1 week post op.