My left index finger hurts when bent, when i wrap my hand around something, grip something, make a fist, or hold it straight and hurts when i put pressure on my hand or pinch my finger. There s no swelling or noticeable deformity but it does bend like i have never seen it do before. I don t know how i hurt it, it s hurt for a week, but today the pain has been very noticeable. What should i do?