Question
I HAVE WOODS IN MY BACK YARD AND I HAVE SOMETHING GROWING THAT LOOKS LIKE  A KIWI WITH THORNS..BUT THE THORNS ARE SOFT..AND WHEN IT WAS SMALLER IT LOOKED LIKE A GRAPE WITH SPIKES AND I AM TRYING TO FIND OUT WHAT IT IS..THANK YOU   JODIE

Answer
Jodie,
There are two plants it could be. You can "google image" these and see if this is what you have:
1. Gomphocarpus physocarpus
2. Jimson weed - Datura stramonium

If you look at the photos of these and you don't think that either of these are what you have, let me know where you live (what state) so I can narrow things down a bit.

all the best,
C.L.