Orthotics. Orthotics and decent shoes, not squishy, soft ones with no support.
I did it years ago and it was horrendous - steroid injections, more ice than Greenland, lacrosse ball, spiky ball under the foot, swearing and silently weeping when stuck standing up for the bus, you get the idea - it eventually went away when I wore a removable cast that immobilised the entire foot for about 12 weeks (in daylight hours).
Basically, the pain is caused by the stretchy band of connective tissue between heel and midfoot tearing in multiple places when it's placed under load, such as when your foot first touches the floor in the morning on when you're standing/walking/running - like an old rubber band being overstretched. If you don't do anything to protect it when it's repeatedly loaded, the slightly stiffer bits where it's healed up will tear again and find it harder to heal up next time.
Having orthotics (because there is a good chance that your foot is falling inwards as it takes your weight with each step) stops the overstretching/tearing and ensures that you have a healthier gait - oh, and if you've had PI, you're biomechanically at risk of shin splints, bunions and all manner of nasties, so the orthotics help prevent those as well by making you upright on your feet/ankles/knees/hips/pelvis/spine/etc.
Customs cost a lot or you have to wait a million years for the NHS to consider them - perhaps some £20-odd ones from Amazon for arch support and stability could give you an idea of how much they can help?
**************
I'm nearly excited today - I've just ordered a pair of Asics trail shoes, as my Ons are wearing out on the inside lining, I've done so many miles in them. Unfortunately, I've ordered them online rather than getting fitted and giving money to an independent instead of the foulness that is Sports Direct, but Asics reckon they have a similar fit/width to the Ons, so I've gone for them in a full size larger than my normal shoes (to fit my orthotics in and let my feet spread freely).
Had to go for a plain black pair as the awesome green ones weren't in stock, but using the orthotics meant I could go for neutral shoes instead of the heavy and inflexible stability shoes this time, which technically saves me enough money to be able to buy yet another pair after Christmas.
And I've got a fleece lined beanie on the way, which will be very welcome - didn't get one with a headlight, but might do that if I start running more before and after work, rather than in the comfort and boringness that is the gym at the weekend.
Going to be muddling through with random long sleeved tops rather than proper base layers for the next few weeks, but if I lose a bit more weight, I'll have more of a choice - the question is then, do I get a waterproof jacket or a gilet, which might be more comfortable?
I'd love to be able to do an ultra - there's lots of walking involved - and food. Just as long as there's no pavement pounding, I'm a lot happier doing greater distances far, far more slowly.
Maybe one day...
you should be proud of yourself no matter what, you got yourself out the door and done it
seem to always have one really enjoyable one followed by one that is a struggle (although maybe that is because I push myself too much on the fun one so the next will be harder 
). Any tips for getting past the mental block where it's like physically can carry on but your mind is saying no you can't?
felt really good
done not to bad either only felt I needed to stop and walk a couple of times
woke up this morning with a sore lower back
it has the feeling of when you get a stiff neck but it’s in your lower back, does anyone have any recommendations? Iv put voltarol on plus googled a few exercises and stretches that iv been doing, but certain ways I move it feels as if it will completely go. Thanks
I find it’s only certain cars that seem to get annoyed. I wear bone conductor headphones and the brightest running gear and hope for the best. My village is single track so I do get off the road to save aggro. Some just get so close and it felt safer for me to just move in for a few seconds - with a pause to my watch obvs 
to be honest I find running in town harder with pedestrians. They seem to hate us even more at the moment.
