Plantar fasciitis, Baxter's nerve entrapment or something else

Regarding my heel irritation:

• I’m experiencing heel irritation/burning/pain.
• The PF doesn’t hurt when I wake up in the morning.
• The plantar fasciitis (PF) hurts when I press it in several spots (middle and toward the heel bone).
• Heel irritation/pain intensifies after long walks (2 or more miles).
• The heel irritation/pain is mainly at the bottom back part of heel.
• Sometimes it starts as itching, especially on the bottom side of the left heel, then tends to feel like burning.
• I have good, supportive shoes.
• I message, stretch, and ice at least several times a day.
• Recently, I've experienced moderate to intense heel pain while driving a long distance (about 4 hours).  This hasn't happened before.

My question is: Is this a mild case of PF or Baxter’s Nerve Entrapment (or something else)? Thanks.