your right it doesn't sound like a trigger finger
. a trigger finger does not usually occur in response to an injury
but spontaneously. a trigger finger is due to a swelling on the flexor tendon that causes the finger to get stuck in flexion and then trigger or pop straight usually with a little pain. your story makes in sound more like you dislocated or fractured you little finger. you should have an X-ray. if your finger looks straight and feels stable then often strapping it to the ring finger with tape can help with the pain - we call this buddy strapping. it is really important in the hand to keep the joints moving to stop them getting stiff.