My wrist still hurt after 4 months

I injured my both wrists about 4 months ago on boxing training. The pain came after i punched the heavy bag with wrong technique. The problem is that it happened 4 months ago and the wrists still hurt in the ulnar area. I went to see a doctor, but he said that x-ray image shows that my wrists are healthy. So what should i do? Do you even know what the problem is?

Note: when the injury was still fresh i continued training. I personaly think that the mistake i made was not taking a break from boxing so my wrists were not able to recover fully.

Thanks for reading i hope that you got some advices for me.

I had a similar issue I asked for a second medical opinion

So i should try and see another doctor?