Hi,
I have had a really similar problem. I feel fine when I run but then when I stop I really struggle to lift my right leg due to pain in my hip i.e. I normally swing my leg onto our wall to strtch it out but I am lucky if I can lift it a few inches!!! Then the next day it hurts to stand, I struggle to get out of chairs etc.
An ultrasound scan has revealed ileopsoas tendinosis, which I have been told is basically tennis elbow in the hip! I am waiting for a sports physio apt to find out what to do but basically I understand that its R.I.C.E (ice four time a day) and physio. Unfortunately I have been told byteh consultant that there is a fairly long recovery time....
Get yourself a good sports physio!
Feathers