High Fiber Snacks

I am looking for ideas for snacks that are rich in fiber that I can bring with me to the hospital after a caesarean. With my last cesarean, I had no stool for over a week, I was miserable! Please let me know of any case that I could make to help me with this problem. Thank you!

Vegetables w / hummus
Wasa bread
Fruit
Nuts
Drink lots and lots of water ... fibrous foods just you constipated if you do not fill the fiber with water to give you the gist of shit on.

High-fiber cereal bars that you can find in the island's grain store. If you ask the hospital, they give you something to help you go gently, nothing lasts.