so I have a new scary sound on my bike. the only changes I have made was the bike shop did a crack check where they bend the bike sideways and listen for creeks which indicate a crack, they also tightened up a couple of the pivot points. Now I do not notice the noise when I put weight strictly on the seat tube and bounce on the rear shock. But if I put pressure on the pedal and bounce on the shock I hear the nasty yet quiet creek. I mostly here it when Im pedaling and causing the pivots to move. I also can hear it sometimes if I, while riding, put pressure one one pedal and then the other continuously this causes a side bend in the bike and I hear the noise. I think it is a dreaded crack or the bike shop tightened a pivot to much. Im just worried that when the mechanic at the bike shop tweaked my bike from the side to check for cracks he screwed something up. It is coming from around the mid to low seat tube and I will try to isolate where the creek is coming from then update this post.