hi guys, I thought I would come on here and see if I could find some advice. my dad is in his late forties and a heavy smoker, spending most of the time he isn't at work smoking. he's lost a lot of weight in the past five years or so and at first we out it down to the amount of stress he was under managing his business but it's been years and he's only just barely putting a bit of weight on now. he's frequently having coughing/gagging fits, seems to have a food aversion and rarely eats two meals a day let alone three. he also constantly has issues with his stomach and complains of bleeding (which the entire family suffers from rarely as we're prone to piles) but his is frequent and quite heavy. recently i've been in the bathroom straight after him and what was left in the bowl after flushing was mushy and horrible looking with traces of pinkish blood. I think he used to have issues with bleeding about 15 years ago and got checked then and we given the all clear. But he hadn't lost so much weight then

I don't know what to do. both my mum and my dad have zero faith in modern medicine and have both said there's no way they'd go to the hospital for anything but a broken bone. there's no way to get my mum to bully him into going as she's even said herself she won't get any of her moles checked and if anything ever happens to her at home (heart attack, stroke, ect) not to ring an ambulance. neither of them will listen to me as I can be a little "health anxious".

I don't know what to do. I'm afraid that something will happen to both of them and my 16 year old brother will be left with no one but me and our older brother.