Even 1% can take getting used to. You will initially have heat sensitivity because those receptors sense temperature. Avoid putting your leg in hot water after application. Some of the nerves of the foot and ankle run up deep through the calf (as opposed to along side or in front of it). When they are really aggravated pain can shoot up further along the track of the posterior tibial nerve if its lower branches are affected. That was one of my original problems after a nerve injury caused a neuroma on an ankle nerve branch. My shooting pain stopped after the repair. Darn thing still hurts but not nearly so bad and it stays local. I know that isn't your issue. Just saying my experience of the funny things nerves do. Unfortunately I am little too familiar with different types of nerve pain!

Go ahead and see PM. it never hurts to get information and then you have someone on board when you are ready or when you need it.