Will I be denied a visa and how would I be able to get my medicine while I am in China?

According to the latest requirements, you need to do physical examination. The results will be included on the foreigner's physical examination record. When submitting your application, you need to provide original and copy of foreigner's physical examination record.

I am not sure if the doctor will write down your disease on the record. If he doesn't reveal it on the record, I think you won't be dennied.