I'm on the 9th day of pre op diet. I have felt great. The first week was 2 shakes and 1 lean cuisine a day with sugar free popcicles and jello and broth. Yesterday for week 2 of the pre op diet I had to start the 4 protein shakes a day with sugar free popcicles , jello and broth. I feel awful....I'm hungry. Irritable and feel very weak.....I know I only have 5 more days and am trying not to whine but would appreciate some advice!