So sore i can't even function?

I try to run a mile or two almost every day but i never do any muscular workout. So last Saturday i decided to work on my legs and calves because i could use the buildup. I worked out in the Gym for like 30-40 minutes doing squats and other leg exercises and when i was done, w/e i just went home. next day which was Sunday, i woke up and ant instant wave of soreness swept over me and well since then, i've had to walk like a penguin, saying "ow" everytime i take a step or sit. My point is my soreness has never lasted this long - Is it normal or should i see a doctor?