M2C, you may have more luck avoiding OHSS if you follow a strict low-carb, low-GI, high protein diet. It's what did the trick for me on cycle three - only got mild OHSS with my positive pregnancy test, not severe spending-a-week-in-hospital OHSS like the others. I can send you the eating plan my FS gave me if you PM me your email address. It goes without saying that your clinic really should be monitoring you much more closely than they seem to, as well.

BW