HELP ME!

Hey guys! I need your help on this one... I've been googling and trying to figure out why O' why I'm getting these weird lines throughout my designs randomly (inside the red circles). Started happening the last 2 weeks on both of my computers. NOTE: the original jpg is fine, only distorts when uploaded to the server!!! So i'm thinking it might be my process...

If anyone has a solution or an idea to fix this please let me know, I've attached a zoomed in version to see how crappy the lines look.

Also if you like the design, don't hesitate to like this shot ;)