Yes I would agree that it isn't the best but this is a pretty evil company it is pretty well documented. It's a very large company they wouldn't even miss me an inch, they're just being petty.
A psychatrist can book you off for as he deems fit, we're not all super human we break down wear out it's no fun I've been there.
I don't know why some some posters were antagonistic? Is a cool thing to do or something? If you got anything helpful to contribute rather don't post at all.
A big thank you to all the people who were civil and helpful good manners don't cost a thing.
Only the first responder was antagonistic - but that's his way. Try not to be too offended.
Most companies have a policy against taking leave during notice periods - this obviously doesn't apply for sick leave but make sure that your 'stress leave' is being counted as sick not annual.
Also, you've resigned. Start at your new place on time (no need to rock the boat at your new employee before day one) and take the hit on leave payout if you can't resolve the problem with your current employer. You can always take it to arbitration/court later