I've ovedosed on iron, will I be ok? 964mg daily

[Handsup]

I was prescribed ferrous fumerate 210mg x3 for low ferritin (heavy periods). When the pack has finished I normally buy a new pack minus prescription because it seems to work out a bit cheaper. So ...after taking new pack since Wednesday, noticed I've been headachey, thirsty with a dodgey tum decided to check the dosage of new pack and it's 322mg which I've been taking x3 which according to google I've been overdosing several days. Am I being dramatic or should I call my GP surgery for advice?

My advice would call your GP or the NHS help line as too much iron can be dangerous but can't remember the levels. Please call now

Thanks for the advice. Called NHS direct and they said I should call or they would call an ambulance based on my symptoms. I assured them I'd be fine driving and definitely didn't feel like A&E material .
Hospital was great (I was in and out in 50 minutes) - apparently I was not in the toxic range but did the right thing in getting checked out.

Thank you for letting me know. Many years ago when I was a student a 2year old ate all his mum's iron pills Different with children but I will never forget.It was awful.
Moral of this post read the label

So glad you are ok

I get my iron off prescription (ferrous fumerate) but as you have realised you do need to be careful you are getting the right strength.

Thanks for letting me know.....I was concerned.