The classic symptom of plantar fasciitis is heel pain when you take your first steps after getting out of bed or after sitting for a long period of time. You may also have: Stiffness and pain in the morning or after resting that gets better after a few steps but gets worse as the day progresses.
When air masses meet. When a moving cold air mass meets a warm air mass, that is lighter, it tends to wedge below the latter, thus giving origin to a cold front. The warm air is forced upwards and its ascent causes the formation of clouds.
Again, there is typically a noticeable temperature change from one side of the warm front to the other, much the same as a cold front. If colder air is replacing warmer air, it is a cold front, if warmer air is replacing cold air, then it is a warm front.