When I strarted playing today, I noticed that high E, B and G strings had really low action and were touching first three frets. It wasn't an issue before. I adjusted saddles and everything is fine now. But I'm wondering how could string action lower by itself? I doubt it's a neck issue, since it doesn't have any noticable bends or twists. I do a lot of palm muting and move my hand around the bridge. Could I somehow affect the saddle height by doing this? What's strange is that saddles were lower, which means that screws were tightened, not losened. Did anything like that happen to your guitar? Thanks in advance.