Iran already blames Israel, for pretty much everything including why the crops fail. I mean, christ, they made the 100th anniversary of the original publishing of "the protocols of the elders of zion" (you know, the anti-semitic forged pamphlet) into a national holiday. It's not like things could get any worse.
The only reason that Iran doesn't attack Israel is because they know that Israel has nukes, and the will to use them with very little provocation. Even for those countries who would likely come down on Iran's side in any conflict, how many of them have any military to speak of? How many have nukes? Even one?
Really, it's in Israel's best interest that Iran starts hostilities and the sooner the better, before Iran gets nukes. In many ways it would actually stabilize the region to have Iran beat down somewhat--you know, at least from Israel's perspective.
Also, you should know by now that ulcers come from infection, not stress. Seriously, there was a Nobel Prize and everything.