2 days on pre op diet and I feel so weak. Felt like I was going to pass out at the gym. Doctor did not give me a diet but, he did tell me to only drink protein shakes. My issues is when I drink those shakes with no food in my system they make my stomach hurt. I know its worth it in the end but, honestly its hard to see the light at the end of tunnel when I feel this bad...

Why are you at the gym on a pre-op diet? This is probably isn't the time. I would stay out of there until you are recovered.

I have gotten use to going to the gym and I feel lime crap when I don't. I have not gone in 2 days and I don't feel bad about it. This pre op diet making me sick and weak. Today I slept all day long and woke up off and on to eat broth, jello, and protein shake.

I have gotten use to going to the gym and I feel lime crap when I don't. I have not gone in 2 days and I don't feel bad about it. This pre op diet making me sick and weak. Today I slept all day long and woke up off and on to eat broth, Jello, and Protein shake.

What do you normally do when you go to the gym?

I have a trainer and we go various things including parts of group training twice a week. For cardio I do intervals on recumbent bike for 45 mins four days a week. Usually burn 285 to 300 calories from the bike alone.

I have a trainer and we go various things including parts of group training twice a week. For cardio I do intervals on recumbent bike for 45 mins four days a week. Usually burn 285 to 300 calories from the bike alone.

What mistysj said above is true - get into ketosis and you'll be back to normal at the gym. The hunger, crabbyness, headaches will be gone and you'll have your energy back.

Make sure you read this - it'll be worth your time: The pre-op diet is NOT a punishment ... it's an opportunity.

You're almost there!