...ah, another syndrome!
A bursa in your foot?
Nope. But I'm sure some would use it for justification of failed treatment....
MN is commonly either between 2/3/4 toes, due to a nerve being compressed between the bones. It can happen betwwen 1/2 and 4/5 but is less common.
Your PFS is just a syndrome - a collection of symptoms. Stretching will only make it feel better, but it'll never get you better until somebody understands the cause of the syndrome.
Change the cause to deal with the symptoms.....mostly due to having too much, uncontrolled motion in your lumbar spine due to a stiff thoracic spine.
Same rules for MN - why have you got it? Shoes, foot posture, running technique, poor lower limb control....
You've got a Morton's neuroma - classic description.
Think your PFS is coincidental.....
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