My pig is dyn

Question
Ok so I've had my guniea pig for 9months now.

and just outta No wear. He gets sick & can't walk on her legs or bearly move , & her heart is slowing down . :.[

Why is that im soo sceard like idk wat to Do  someone pls help me .?

Answer
Hello,
I will take an educated guess that he has gone to rainbow bridge.
I will say that there is NOTHING you could do, besides be there in the final moments.
I think that it sounds like old age, guinea pigs live to be about 4-5 years old.
If you want to follow up with another question, please feel free.