2 months i fell and landed on my wrist. at the time moving is caused pain. now squeezing and rotating is ok. but fully bending it back or forth hurts?

It is still healing: While it is unlikely that you experienced a fracture (getting an x-ray at the time would probably have been a good idea) you probably strained the ligaments and supporting wrist muscles. It is typical for certain movements to be well-tolerated sooner than others in the healing process; which ones sooner vs later is not predictable. Entire healing process could take 6+ months. Take care:)

Scaphoid/wrist fx?: 22 year old gentleman with history of fall onto wrist with significant pain,now persists with flexion/extension 8 weeks later. You may have fractured your distal radius, ulna, or a carpal bone such as your scaphoid bone. With motion at the fracture or nonunion site, pain will persist. X-rays including a scaphoid view are indicated. If fx present definitive reduction/rigid fixation may be necessary