Shelbs, glad you found this site. I found it after my surgery. Lucky for you, you found it before. All of us that will reply to your questions will have different answers. We are in different stages of post surgey. We have all had the surgery fairly recently. I think we are were all on or about the same course in post surgery. Some have recovered great with minor problems and others still have aways to go. I encourage you to read "Total Colectomy Part 4. During Part 4 is when most of us had our surgeries. There is a lot of broken down information about each of us and a lot of good advice.
I will give my answers to your questions.
Worst part of surgery - The unknown afterwards. what to eat, how will I feel, what will it be like. Right after surgery is not what you base the rest of your life on. It will take a couple months or more to get in a new routine. Your lucky, you have us to help you here with your post surgery questions !!!
Tube - I did not have an NG tube, but one us did, can't recall who.
Diet - Some were on a low residue diet. I ate ice chips for 2 days and then started on cream of wheat. Also, mashed potatos, jello, pudding. Now, I am eating spaghetti, hambugers, grilled chicken. You will just have to try and see.
Weight - I lost 15# in 10 days. but I had other troubles. I have gained about 7 back. But, I gain weight easy, very easy. So, I am trying to keep it off. I am 5' 7", 145#
Recovery - I am still recovering. As you have read we are getting along great, but we each have our little problems that just have not caught up. But, we are going thru it together.
Good luck with your decision !!
ps May I ask where you live?