I have a site that's about 1.5 months old. Usually when I get Google dance they will drop off completely and come back, or they will move all over the place quickly. The only linkbuilding has been a BHW service that I received on March 26th and was drip fed for 10 days..so maybe it is a dance.The links that I bought should be pretty safe for the site even though they were bought. Web 2.0's, Articles, and Social Boommarks with unique readable content related to my niche. My 2 main keywords were going between 24-27 and sticking around there for a week or more and for the past 3 days they all of a sudden shot down to 295 and 230 and now hardly any movement. I checked Google Webmaster Tools and there is no messages, and I checked AHREFS and see no new links pointing to the site so don't think it's negative SEO, I also don't see why anyone would target me considering I was on the 3rd page of Google and there were other sites on Page 1 that would be better targets for negative SEO. I most likely just have to wait it out and see, but wondering if there is anything else I should be looking for? Is it common for this to happen?