Any advice? I have been having wrist pain and don't know why?

Nonspecific. Unfortunately, as you can imagine this is a very nonspecific question which cannot be well answered through this type of forum. Wrist pain can arise from many conditions such as joint inflammation, sprain/strain, avascular necrosis, fracture, arthritis, instability, etc, so the best thing would be to see an orthopedist for further evaluation.