What should I expect?

I'm going to be taking 100mg of clomid... I was taking 50mg before and there still was nothing happening other then mood swings, headaches and hot flashes but no ovulation so they want to have me try 100mg. Are the headaches going to be worse? I've heard when you ovulate on clomid it hurts like hell... any truth to that? Any tips or tricks to help get through the side effects clomid brings on?