Overused Legs and Foot

I can feel my legs and foot pain due to overused. I feel like it overfatigue and needs some rest. I have been working hard to catch the lost workout routine schedule last week for this week and I feel like my body, particularly my legs and foot, to be overused.
It's frustrating because my weight still the same. I am not losing any weight and sometimes it will go up. I can't eat less because my metabolism is going fast and I feel hungry faster than usual. However, I can feel than my clothes are lose on my body which mean that I am loosing body fats which is not bad at all. But then, I still need to lose weight.