It’s difficult to explain
I used to have severe Obsessive Compulsive Disorder (OCD). There is a huge misconception that OCD is all about making sure that everything is squeaky clean. This is not true. Many people use it inappropriately in their comments about themselves, “This chair is not in order! Sorry I am OCD”. This simply means that they like to be neat.
OCD is more complex than merely wanting to keep clean and neat. Going through OCD is a real struggle because your brain is just permeated 24/7 with intrusive thoughts that feel very real. For example, being afraid that you will kill your family if you leave the gas tap turned on when it is already turned on. Afraid that you may have illicit sexual affairs with people you randomly see on the street when you have no sexual attraction for them at all.
OCD is about the inability to break out of irrationality. It’s difficult to explain it to people who don’t have OCD. They just dismiss my concerns as “you are too worried.”
They don’t understand that it is excruciating to have these worries that are constantly being repeated in your head.