Today, While Sitting At My Desk, I Attempted To Stand

Today, while sitting at my desk, I attempted to stand up. When I did a received a very fierce, heavy, cramping sensation from just below my left knee to middle calf. I have since struggled to walk and cannot bend my leg upwards towards my backside. Eight hours later, I have a very noticeable bulge on the inside of my calf with very slight discoloration. I've tried ice and two aspirin with little to no relief.
Should I wait for symptom improvement or see a doctor?