There are very few med schools that review PS prior to selection, so unless applying to Keele and a few other specific ones you should be ok.
Some don't look at it at all and others have it available at interview so it is all about how you reflect on it at interview.
So a simple, I am looking forward to work experience I have planned for November where I expect to glean important further insights into medicine or similar, might do it.
(but have some important insights reflections ready).
It's all dependant on your preferred unis selection policy.