I thought OCD stands for 'Obsessive Compulsive Disorder'?
My auntie Jean certainly had an obsession with cleaning her house that went far and above ordinary normal housework.
Once she was in the middle of hoovering and wouldn't stop to open the door when my mum went to visit her; "I'M NOT STOPPING" she called out, so my mum turned round and walked off in disgust and never spoke to her again, and neither did I.
Obsessive Compulsive Disorder is a very complex mental health condition. It is a cycle of irrational thoughts and anxieties which sufferers often control - but not always - by carrying out a series of unrelated compulsions/rituals. Sometimes those compulsions and rituals will centre around cleaning, very often they will not.
The sufferer will have thoughts that induce anxiety - often intrusive, disturbing, irrational thoughts. The sufferer will try and control these thoughts with carrying out some kind of ritualistic behaviour to reduce the anxiety. The compulsion may or may not be related to the obsessive thought. So someone may have anxiety about contamination and therefore they clean. Equally, they may fear that they are going to hurt a loved one and clean because they believe that by doing so, it will stop the loved one being hurt.
In a large percentage of cases, there will be intrusive, unwanted thoughts which are not accompanied by compulsions or rituals because it is the obsessive thoughts which are central to the condition and not the compulsions rituals.
You can have OCD and not have a full range of compulsions/rituals. You cannot however, have OCD - clinical OCD - without the thoughts. Obsessive behaviour in itself, is not enough to describe someone as OCD - habitual cleaning, for example is not in itself OCD - everyone displays some degree of obsession, to one point or another. It does not mean they have OCD.
Oh, and one other factor, the person with OCD will know their thoughts are irrational. They will often be horrified by their thoughts, which can be very intrusive and disturbing. They will often hate themselves for the thoughts they have - at least until they are diagnosed and understand it’s due to the condition they have.
Your aunt may or may not have had OCD, depending on the reason why she cleaned. If she did, neither your’s nor your mother’s actions, will have been very helpful.