dotty I was exactly the same as you whilst doing my C25k and would not run up a hill! Me and my friends started doing a fortnightly hill training session a couple of months ago and I cannot believe the difference it has made in such a short space of time. I no longer fear hills, my stamina is so much better and my 5k time has decreased significantly. I also managed to run up my nemesis of a 1km hill by my house a few weeks ago 
I totally get where you are coming from but the rewards are well worth the pain 
The basic training is:
Run up the hill for 30 secs, run back down, run up for 60 secs, run back down, run up for 90 secs, run back down, run up for 2 mins, run back down, run up for 90 secs, run back down, run up for 60 secs, run back down, run up for 30 secs, run back down.
That is 1 pyramid and you can run as slowly as you need to (do a warm up jog to start with). We only managed 1 pyramid the first time, then managed 2 the last few times.
The Bolton parkrun has a hill nicknamed 'Cruhilla' and the Burnley parkrun has 5 hills in it
(am sure I remember you saying you were in the NW - apologies if I am wrong
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