Redirects

Not sure this is the right site for this but I'll try anyway.

So I have a little blog and last night something very odd happened. I've put a little article and usually after I do that I share it on my twitter, FB and G+. Now twitter worked like a charm. However... FB and G+1 acted VERY WEIRD.

If I share the link (both ways act the same, doing with with the help of the widget from my site or from typing the whole address in FB) it will display my website in the thumbnail but when anyone clicks it it will get redirected to another site (every time you click it it's something different). At first I thought that it might be my PC so I tried to clean it up, found nothing.

Also when other people try to share the link they get the same result. I don't understand where exactly this redirects happens. Can the WP template be infected? I had NO PROBLEM with it for 2 months.