doodle, so sorry to hear about your mum. Have they got the technology to see whether it is in your genes?
Mine is nothing as drastic as that. I have (apparently) developed a major sensitivity (possible auto-immune type sensitivity) to the changes in the hormones that my body produces. So when the progesterone goes up towards the end of my cycle, I get v nauseous, stuffy head, stiff joints covered with a hot, blister type rash. When the hormones drop (or whatever happens when the period starts, can you tell I never concentrated in biology?!!), I get a raging migraine that lasts till my period has gone away (coupled with exceedingly heavy periods with huge clots). So basically, I feel 'normal' for around 2 weeks of every month!
I'm trying the combined pill again now the theory being that if I can find one that I don't react to (they make me feel horribly sick, sore boobs, the works) that I will just keep taking it (tricycling) as it will keep my hormones level and without the changes in the levels, hopefully, I won't react.
If I can't find one that works, then I'm going to ask them to remove my ovaries (it is an option but right at the end of the road iyswim).