Ok, so I've changed my technique, since which I have not found myself in pain (tendinitis or otherwise). However, I have found that I use my index finger the most, and sometimes, I feel it going a bit stiff in the middle of playing really hard it doesn't seem to happen too often, but sometimes it does. I'm wondering if this is something I should worry about. Is it a lingering effect of my tendinitis? my finger getting used to being so intensely used? I'm not too freaked out, but I do get worried that I'm doing harm, or that it might not go away soon enough. Please help me out here.