Cheers Jakob.
I agree with you, I expect it is more my leg than foot. My family are cursed with the shortest Hamstrings in history I think, nobody on my mother's side has ever been able to touch their toes with straight legs (actuallyI eneded up being able to after several years of Tae Kwon Do training...but that is a distant memory) . Cycling never helps stretch Hamstrings, quite the reverse, so I expect it could well be down to tightness all the way through my Hamstring, calf and "achilles".
I'll give that a go as well as endeavouring to do calf/hamstring stretches.
I'm fairly sure the tennis ball rolling, under my foot, is helping though.
I think the message to any sufferers is "don't give up".
I'll let you know how the "Trigger point" massage works out.
As a side issue, I never realised how common this complain was until I mentioned it. I don't think I've yet mentioned it to anyone who either hasn't had it, got it, or whose relation has had it.
It's extremely debilitating though.
Note. To avoid any embarrassment at the Podiatrist's, it's pronounced - "Plantar Fah-see-eye-tis". If your heels are bloody tender when you take your first steps of a morning then you most likely have it.