Hi Droves, thankyou. I've been very moved by your posts...
God that must have given you a wobble for a second, wondering if just maybe, you should visit? Glad you saw through it and didn't get sucked back in.
I hope you decide to go for counselling, and get it too, sometimes there's big wait for it unless you pay even when you really need it. I found it my weekly sanctuary to unload and then forget for a few days.
That kind of manipulation (the heart attack tale) is my mum's bread and butter
She has done this with my aunt but in my name.
Basically a couple of years ago my aunt (who is also a drinker) and my mum fell out over some trivial shit, and my mum thought she could get my aunt's attention by getting my dad to tell my aunt that I had cancer. My heart is hammering while I write this as the rage and despair I feel at this is unbearable- being a bit superstitious it's almost as bad as wishing it on me IMO.
My aunt rang my sister in tears asking if it was true, my sister assured her I was fine. My aunt vowed never to speak to my mum again and she hasn't.
I did have to go to the Royal Marsden a few months later ironically, for investigations in to a lump in my armpit, which my mum was very calm about. In contrast to her concern and devastation about my "fake illness" 
We haven't spoken about it as my sister begged me not to tell but it poisons every conversation I have with them, and probably affirms to my parents that I'm the grumpy, overemotional person they perceive me as... I can't bring it up, but I can't let it go.