For the past couple of weeks by the end of a 12 hour shift as a tech in a busy ER I have had calf pain and just assumed it was normal as I'm on my feet the whole shift. But today after sitting (designated psych pt. sitter) for at least 11 hours of my shift, when I got up I have had a deep sharp pain in my left calf for the last 5 hours with no relief. It does not feel like a muscle cramp at all. It stays a 7 out of 10. I'm 49, no cardiac hx, but high cholesterol and had been out of statin meds for 3 mths.. Siblings all have cardiac hx, PAD, and leg stents. Should this leg pain be of immediate concern? Nothing releaves pain, worse when sitting still