1) At what point would you seek help for a bowel condition (blood in, or on, the stools? A change in your normal bowel habit? Pain in the abdomen or back passage? etc)
Blood - I'd go straight away. Anything else, I'd probably see how it goes, examine my diet, see if there's anything wrong there, or any other symptoms that just suggest having a bug of sorts... If it persisted, then I'd go. Thankfully never had to though...
2) What words would you feel comfortable using with your GP? Are there any words you would find uncomfortable? ****? Stools? Bowels? No 2? Faeces? 'Do toilet'? etc.
'****', no, too crude. Faeces, yes, I'd use that word. 'Poo' would suffice, though.