knees not stable

Question
Hi, about a year ago I started aerobic exercise at home and after the second day, i could not walk on my left leg; after about 2 weeks I was find again. now a year later I'm starting to limp again. it started yesterday and I was not running or exercising. I have to walk very slow because if i go fast it's as though my knee and leg cant hold me up.they feel invisible.  

Answer
Hi Lande
I wouldn't be able to answer your question since to properly make a proper diagnostic i would need to to ask you many questions in regards to your history and bio of activity related to your situation.If you want to call me here in albuquerque NM anytime i will be happy to cover your situation with you and get some resolve with this.Just go to my site for contact info.

All the best

John
www.rentacoachinternational.com