elvis
OCD lies on a spectrum. Where one falls on that spectrum is the issue wrt whether it becomes manageable or debilitating.
Safe aviating is built on SOP, routine, structure, diligence, thoroughness, preparedness to list but a few. OCD tendencies obviously could be beneficial during operations, however severe OCD I believe would be problematic.
As you mentioned in an earlier post, managing the compulsions is the key in aviation as in daily living. Cognitive behavioural therapy (CBT) can be helpful/successful for a true diagnosis.
Good luck.