response.rediect t the same page - but with querystring

Hi all,
I need to call a page from itself, but adding an argument ?id=FixNulls (see below example) 
Response.Redirect("mycurrentpage.aspx?id=FixNulls"); This argument string is also sent to other pages, depending on the program state, which is why I want to use a querystring.
Why does the above code work when I and Redirecting to another page, but blow up when the Redirect is to the current page?
Can I use a querystring and redirect to call the current page?
 
Thanks
Gord
 
 
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