There’s a fair few neuro symptoms you’re describing there- P+N, heavy leg, what sounds like foot drop (foot slapping on floor as you walk). There is a range of things that can cause them, but some of them are serious, and definitely need to be ruled out. It’s prob not cauda equina (it’s rare) but that is prob the most damaging if not caught early, hence the symptom card. Other things it could be range from the very benign (like parasthatica meralgia, which is a temporary numbness caused by tight clothing) to the very not benign (like a space occupying lesion in the spine)
So, let’s hope for the best but prepare for the worst, and get it checked out, preferably in the next couple of days, sooner if the symptoms progress or new ones develop