I carry a wallet, keys, and other various items in my other front pocket all the time. I don't have, and never have had, any pain like this in that area, or any other area of my legs. I doubt it's a coincidence that the area in which I feel pain is almost exactly identical in size as my phone and exactly in the same area where my phone sits in my pocket.
I'm aware that many people tend to dismiss the experiences of others, for whatever reasons, which is why I asked if anyone else is experiencing this issue.
Thanks