Keen do you have PCOS or did they give you reason why you had OHSS or were you just good responder

Today they said they do a scan after Bloodtests on 7th if out of normal ranges - but not sure which way either too low E2 or if high

How did you feel when / before they realised you had OHSS Keen ?

I read everywhere about drinking 3-4 litres a day - what do others know about this ?