Deep Leg pain after exercise

Does anyone else get leg pain after working out? I've been walking on the treadmill with an incline of 10 and riding the stationary bike lately. It's not sore muscles that I'm feeling, it's deeper in the tissues or bones. Almost feels like something gripping part way down my calf but it goes from there to the ankle on both legs. It's very irritating! I'll try any recommendations. Thanks!