My feet are rebelling

I wore these shoes yesterday for most of the day.

They are pretty tall (see description below),

Dress to kill with these amazing Christian Dior 'Serpent' booties that feature smooth polished calf and funky top-stitching.

• Color: Black
• Polished calf upper
• Round toe
• Lace-up vamp
• Top-stitching with eyelet tabs along upper
• Leather lining
• Leather sole
• 4½'' faceted copper-toned metal heel
• 1'' covered platform
• Approximate measurements taken from a size 8 (EUR 38), and may vary by size
• Calf; Italy; style#307376201

but are the most comfortable heels that I own.  Seriously!  Anyway, I got home yesterday from the cookie swap (which was awesome and I brought home a fuck-ton of cookies).  I chatted with the hubster for a bit before going to bed, but my left foot decided that it hated me and proceeded to crap up F-I-V-E times last night.  It would cramp up and then relax only to cramp up again.  Massaging it and clutching my foot for 30 minutes did nothing for it.  It finally uncramped for long enough for me to put my foot on a heating pad.  That helped a bit and I finally was able to fall asleep.  My legs and butt were tired from the position I was sitting in to relieve the cramped foot.  I wonder if it was the shoes that caused it.

I hope not.  I love these shoes.  Anyway, I woke up this morning and the foot felt fine with no evidence of the excruciating pain from last night.