My DD suffers from this too, usually at its worst when she first wakes up in the morning. One or two fingers on each hand are curled inwards and locked and she has to force them, painfully, open. She has also had swelling at the base of one finger. The condition seems to be intermittent with her, and at the moment isn't bothering her However, when it was at its worst, a couple of months ago, she saw her GP who has referred her to a rheumatologist. To be fair, she has had other problems with her hands, tingling and deadness, which may or may not be related to trigger finger, and she also suffers pain in one of her knees. Her appointment is next week, so watch this space.