So, this is my first post. I have been doing the pre-op liquid diet for the past 6 days. My surgery is scheduled for Jan. 8th. I just want to know if it is normal to feel cold and tired? I just can't seem to get warm and I am napping everyday.

I am doing a very low fat, low calorie vegetarian pre-op diet and I have been complaining of the same things. I can't seem to get warm enough, but have been sleeping very well for 8 - 9 hours a night.

Yeah, it's normal. Your body is getting a lot less than it needs. But don't worry, it'll adjust and you don't feel tired. I am colder now, but that's due to the almost 100 pounds lost this year.

WOW... Congrats on such a great weight loss!

Yeah, it's normal. Your body is getting a lot less than it needs. But don't worry, it'll adjust and you don't feel tired. I am colder now, but that's due to the almost 100 pounds lost this year.

Ugh, the dreaded pre-opt diet. I was assigned to do it for 7 days, but ended up doing it for 10 because I wanted to start on a Saturday instead of a Monday.

A lot of people said it gets easier, but for me, I felt hungry the entire time. I guess the only thing was somewhat easier is I got "used" to a gnawing, growling hunger. Like I'd feel it deep in my gut and it sucked, but I'd just say to myself, "You can have broth or a Protein shake. You are NOT going to eat meatballs/Chipotle/burgers".

At first my tummy would keep "crying" and rumbling that it didn't want those things, but I kept telling myself over and over "Protein Shake or Broth. Otherwise, shut up stomach". My stomach still protested, but the cravings got easier to fight.

When I got home from work everyday, I would have a headache and feel drained, so I'd lay in bed, but be unable to get into a deep sleep. It was weird because here I'd be dog tired and hungry, but my body would go into a really, really light sleep where the slightest sound would jar me awake. Not very restful.

While this is probably not the best thing to do, what motivated me to keep going is I would periodically check the scale (again NOT endorsing this, it's just what worked for me).

At first my weight stayed the same, then I began to lose a pound here and there. The day of my surgery I had gone from 240lbs to 226lbs which felt good.

You CAN do this. I know it's not easy, but it'll be so worth it.