Chewys vet bills

As many of you know, my dog is my whole world. He's had a really rough couple of days in and out of the vet. 2 days ago he was in the emergency clinic because his tail got caught in door. For him to get checked out (visually & an x-ray), the total came out to nearly $300 just to find out that he is okay. Today, he was acting really weird- He wouldn't get out of my bed, and stayed in my room the whole day (which is really unusual because he never leaves my side). I decided to sit with him upstairs and realized that his stomach /underside is extremely swollen. I tried to get him to go outside for a little bit and realized that he can barely walk. So now we are sitting at the vet waiting for answers. My baby is already 14 years old and i need all the medical care that i can get for him. After leaving my last job i am still looking for a new one, so i cant afford to pay for all of his care. Luckily my mom has been helping out with the bill portion of all of this, but im afraid that the cost is going to rise too high for her to continue paying or for me to ever pay her back. Chewy has been in my life since i was 8 years old and i want to make sure that the rest of his life is full of fun and happiness, not pain and scary trips to the vet. So i am asking anyone and everyone to please help me raise the funds to get him the care he needs and pray for a quick recovery. A simple share could make all the difference. Thank you so much