got a limp all of a sudden

Question
My pug (bella)one day started limping, she holdes her left back leg up when walking (80% of the time). It started 1 month ago. I thought she pulled a muscle when jumping down off the couch or something. When should I start to worry? I can't affort a bill if they cannot help her, but I want her to be comfortable, and ok!

Answer
How old is she and how much does she weigh?

She probably has either a luxating patella, hip dysplasia or arthritis. She needs to see a vet to see if they can give her something for the discomfort. I would get her there as soon as possible. I cannot imagine being in pain for a month with no medicine for the pain.

I understand not being able to afford a huge vet bill but Bella needs to see a doctor.

Thanks and good luck.