Random pains

I am 1 week 4 days post op

i go from feeling fine to have strange sharp pains then nothing again... Is this just the normal healing process?

the past 2 days  about an hour after my 1st shake of the day I feel horrible (tmi) I end up on the toilet and coughing/puking up a little tiny bit of mucus.  I am amazed at how little comes up for the amount of pain and nausea I feel.   I get the chills for a few minutes and then I am fine.

i am still on post op liquid diet (I don't think it will ever end). 3 4oz protein shakes day made with almond milk (no sugar added)

i need to start my vitamins but not trusting my little tummy...  

I was having issues with my protein shakes, as I'm also on the post op liquid diet (still).  I changed my protein shakes.  I went to GNC and purchased the  Isopure.  THere are 2 different forms - clear liquid (about $5/bottle) and then a pouch of vanilla that you can mix w/ water or milk.  Since my change, I've had no issues with the belly pains/nassea/diarrhea.  I actually feel more human and more alive/more alert with more energy.  

I hope this helps - Hang in there - I know what you're going through!!