I rescued a cat from my alley. She is the most anoying cat. She won't leave me alone. Anyways- she has lots of HUGE mats on here stomach. When my mom and I try to cut them out she has a spazzz. I am afriad to take here to the vet cause 1.she might escape/run away 2.the vet might find something wrong with her
So it will make me really sad.. what to do what to do

Believe me the vet can handle the cat. I have taken some rather large ones in as well as some with huge attitudes.
Those mats are very uncomfortable for her and can cause her skin problems if they are not removed.

If you must to ge there in the carrier let her go overnight without food and put it in the carrier she will follow the food.

With a cat that is quite large and a little mean I take off the top and put them and then re attach the top of the cage.

Good luck and bless you for taking her in also don't forget to spay her if she is not already.