I'll second that about seeing your FS before changing anything in your treatment... (Sorry - didn't realise you'd seen her already!)
In regards to dealing with it - I guess I try and look at it as having a purpose... Like they say with labour pain - can be easier to process if you constantly remind yourself that it's pain with a purpose. I constantly remind myself that things AREN'T as bad as they seem, I know it's the hormones, and it'll ease up when I come off them - and it's for a REALLY good cause - a beautiful baby at the end of it all!!
Sometimes it also helps to think of it as practice for being a horribly hormonal pregnant woman! I get the opportunity now to try out strategies of coping so that when it happens for real later hopefully I'll be able to get more of a handle on it
Hope that helps you somewhat.

Keep in mind as well that the IVF drugs are more hardcore and likely to play even more havoc with your emotions! Maybe the practice in dealing now is a blessing in disguise??