Weird feeling in my leg

Firstly, sorry for my english. Two days ago my left leg start to feel weird, maybe weak, accompanied with slowly twitching muscles and random sharp pains. The feeling is gone when i wake up in the morning but comes back later in the day. It makes me nervous. What could it be?

hi Henry,

Are you a young person? could it be growing pains? (my mum and daughter got them quite bad)

Beverley