Awww rubbish news PTL, I was thinking of messging you on FB the other week to see how you were getting on.
I got neuroma confirmed by ultrasound 2 weeks ago, 6x4mm, between 3rd &4th metatarsals.
The symptoms you have sound similar. A couple of years ago I had mild symptoms & managed to get them to disppear with new shoes, spec insoles and moving cleats. But since running (I have a strange gait, pushing through minor metatarsals rather than big toe), I've had more problems. So far (from new year) I've had 2months off, only worn trainers with orthotics/birkenstocks - no pretty shoes
, had cycle specific orthotics made 3 weeks ago, and then on wednesday had a steroid injection. I'm going to have another the week before the vit, after that I may end up with another injection and/or surgery, hence decision not to go for IM next year.
Trainers have very flexible sole so I found they actually made my foot pain worse. I find being out of the saddle and/or pushing hard up hills worse, on a flat ride I can get to about two hours before pain kicks in, on a steep hilly one about 45mins.
I'm not sure any of that is helpful since your IM is so close, and I agree with ridgebackmax you probably don't want to be changing things this close. My orthotics have metatarsal support which does seem to help, so does loosening straps on shoes, and I have even been known to take one foot out and pedal with one leg for a short while! I've also found that actually the cold water of the swim seems to help before cycling!! When I got off the bike at Bala I hobbled out of transition, but actually since then putting good trainers and orthotics on after cycling I have managed to run the pain off a bit.
I really hope it's ok for you at outlaw - maybe ask GP for ultrasound of foot for after event to get it sorted?
Looking forward to supporting you & the other pirates! 