Thankyou for the replies, and sorry i did not reply earlier.
I had a rather unpleasant 'eye-opening' experience last weekend and had been since trying to figure that out.
I had the opportunity to try on some pairs of Zemgears & vivo barefoot. I liked the feel (and look) of the zemgears and decided to maybe pick a pair to wear in places where I have to be with shoes of some kind...
So I try on a pair, and decide to do a slow run in the aisle to see how it feels. Just a bit of walk and a slow...very slow easy jog... love the feel of the shoe and then bam!
I felt as though my right foot was being electrocuted. There was a feeling of tingling on the side (but top) of my foot and a stab on the ball of my foot. I tried to shake it off cause I had never experienced anything like that. Removed the shoes, massaged me feet a bit and tried it on again. It was the same.
So I put it down to soreness of some sort from my last run (of 2 days before) and swollen feet (both feet) since I have had a very hectic time at work and long hours sitting makes my feet swollen (medically doc says theres nothing wrong with me) and since I liked the feel of the shoes, I bought them.
Put my other pair (a very thin soled open sandals) and walk back to the parking. The pain in the ball of my foot just got worse till I was sort of limping. I just wanted to yank the sandals off and walk, but being in the mall, I had no choice but to just take it one step at a time.
Got into the car and took them off and then sat in contemplation till I reached home. Reached home, massaged my foot, soaked it in cold water, massaged again and lay in bed to get the swelling down and consequently the pain maybe as well... but couldn't help having a sinking feeling overall... worried that some other form of Plantar Fascists & Achilles Tendonitis may have returned.
Goggled (couldn't help myself) my symptoms and the closest thing I could find to describe what I was feeling on my foot was Morton's Neuroma.
That evening we were staying over at a friends place that was a 100k drive away, so took the opportunity to spend a 10-15 mins, once there, to walk on gravel and it felt so good on my feet and took the pain away for a while, but back on the road, the electrocution was still there so just stuck to gravel for a bit and went to bed early.
The next day, my foot felt better, that is no pain and the swelling was down too. A slow run on the road (300m) barefoot felt as good as before, but I did not push it. Took an appointment with my ortho (this week) and went back to the mall and returned the shoes. At night, again tried a very slow 800m run, without pain or tingling.
This week did another 5k & 7k (run walk) without any incident, but have decided to see the doc all the same just to rule out MN if thats the case or anything else whatever it was.
