i'm having my surgery monday, but i've had a terrible time while on the protein shakes these 2 weeks--'tearing up' my intestines! (between 12 & 20/day--ugh) i've tried different brands, (dr's office says sometimes it's the sugar alcohols in some) Today i thought it might be a milk intolerance (since i rarely dirnk milk) so i bought some almond milk today. but it's practically pointless, since i'm on clear liquids tomorrow! I'll be glad when the shakes are over.
good luck with your 'issues'. sorry mine is not related to yours, but i just had to vent.