Does this sound like OCD?

Yes. Obsession with symmetry is a common symptom OCD. If it is significantly impacting your life go to a doctor and get it diagnosed and treated. I have OCD and feel a need to repeat things over and over. This includes words when I am writing. I'll have to erase them, rewrite them, and repeat, until it feels right. It has impacted my GPA and I hope that you will not have to deal with the same problems that I have had to deal with.