Overnight I lost about 15 from my url rank on ahrefs! Down to 18 now.
Rankings fluctuate alot. Could be you hit a spam filter but than again maybe you didnt. Be patient and wait. In the mean time I do have some suggestions to help fill your OCD nature.
Try applying as a writer for some big name sites such as about or wiki how. Post some how to articles about electrical work and link back to your site.
Maybe join a couple forums in which people need electrical help and help with them with there problems such as remodeling, hobby electronics anything and stoner forums(pot heads need to know how to wire thous bulbs, am I right?!?!). Of course have a link back to your site. Links from an active member at a forum are very powerful.
Unless you get some solid link packages expect links to die off. Think about it, these guys get paid to spam.
If you dont want to do some white hat stuff (which would be incredibly beneficial to you) then do this :
Study silo link building and interlinking website pages. Such as I have 30 pages on my site they link to one page(that I want to rank) and they have a diverse link structure pointing at that ranking page. (now I need less links from the webs to that page because I have given the love from my own site)Then I would point links at thous 30 pages that might not be the best quality (ie bought links) with a diverse link structure of related links. (now the power of thous links flow to my ranking page, which makes me happy)
I would suggest some social media. Im not saying get a twitter account and spam the interwebs with blog posts. But a few likes and a linkedin profile couldnt hurt your site. I dont know if a facebook page would be worth the effort. You would have to brain storm on this, to see if its even worth the time. I know I dont follow my local plumber, electrician, roofers esc desperately waiting for information.
Think about building some solid web 2.0's and using them to absorb some of your spams. Build them a little more legit than 3 pages of blah blah blah. You know make them solid, like 20+ pages of blah blah blah, that gets some extra blah every other week. Also, one of thous about me pages that is readable is also nice. Plenty of fish has assloads of people talking about how great they are, im sure they would be willing to help you out. Hell, I think they might even throw in a picture fore your troubles. These will be powerful links down the road. Love em, link to them, treat them nicely.
What Im really trying to say is take it slow. In the begining I took it slow, I did well. I started spamming the shit out of the webs I did poorly. What I mean is both will make money, one will last alot longer than the other. ALOT longer. I would really hate to see you burn this site. They game has changed my friend, its quality links not lots of pretend quality links. Yes there are many who spam and do great, but they have built in continence plans and could give a shit less if that site tanks. OCD people like you and I, get our feelings hurt when baby gets a cause of SIDS.