Pain is mostly toward the top back of my heel. Sometimes radiates to the outer back of my ankle and lower outer foot. I've had incidents in the past where I'd feel a pop in my Achilles tendon followed by short but severe pain. Currently can't do a calf raise or get that heel off the ground. I walk with a noticeable limp and have a hard time going up or down stairs. Pain isn't constant but is felt with any weight bearing and is more severe with any movement that should involve lifting my heel.