Need WW help...boat issues

HELP !!

Ok last night went out. Had great time but storm rolled in. Had to drop two guys off at different dock and then had to try to beat the F ing storm to anther dock where my trailer was. So had it pegged which I know I shouldn't but had to. Storm was really bad and we didn't beat it. It was about as scared as I have been in a while. Lightning bad and thunder like a mofo along with rain that was sideways. Anyway....didn't feel anything hit, but we started to vibrate. We thought we must have hit something but at that moment I didn't care. We made it back got it up. We looked and felt the rudders and prop and looked just as new as when I got it. So my friend thought that we may have experieces High RPM balance issue. Have you ever felt that? I was running way to hard on her to save my life ...lol at least I felt that way. I was running around 5000 RPM. It wasn't a bad vibration just enough to be really freaking annoying and worrysome. I couldn't put back in after the storm to try her out again but wondering what you all thought. RPM BALANCE or did I hit something? No nicks not even a scratch on the prop. It looks brand new.... I actually hoped it was the prop cuz that is easy to fix.

I have a Merc 8.1 in my 2011 Epic 23v that has 26 hours on her. Thoughts? I was running when it started. Also I never felt a hit like you do when you hit a log it really just started to vibrate. Not supposed to go over 4500 RPM. At least that was what I was told. Thoughts?