First World Problems

[Bridge]

No, it was in the outer side of the thighs. I googled it and apparently this is the reason:

"Itchy skin usually occurs during exercise performed after a long period of inactivity. The itching is not on the skin, it's inside the actual limbs. There are millions of tiny capillaries and arteries inside our muscles which expand rapidly due to the demand for more blood that is brought on by exercise. When fit, these capillaries remain open allowing maximum blood passage, but when unfit and inactive they tend to collapse, allowing only minimal blood passage (which is sufficient for a sedentary person however). The rapid expansion of these vessels causes adjacent nerves to send impulses back to the brain which are interpreted as an itch. That's why after a few sessions the sensation tends to go away. Just another indication of increasing fitness levels."

I'm not a fit person but I'm used to take long walks. The only difference is that I usually go at dusk, not in the morning. Maybe it was because of the heat?

That's quite interesting. I think I've experienced it a few times myself, I just never thought anything of it. It could be the heat although I wouldn't think it would have that much of an effect.