Gymnastics Wrist Injury?

I've done gymnastics/floor since I was about 3. I started getting more competitive with my floor exercises and my wrists starting hurting whenever I put weight on them. I started wearing wrist braces when I went to gymnastics. Then abut a month ago I fell on my wrist and went to the doctor because of the pain. He diagnosed it as a chronic sprain and told me to wear a splint and ice it as needed for swelling. He also told me to wait a month and if it still was causing pain to get an MRI conducted on it. Well, it has been a month and even with the splint the pain has gotten worse. Can anyone tell me what it be wrong? I want to make sure there is nothing I can do before I head back to the doctor. Thanks!