I have just started running, I have noticed, that whenever I run at a slow pace, I noticed that my legs feel very painful, but whenever I run like those runners on olympics(full burst) I don't feel as much stress in the legs as I have when I run slowly. What should be the proper way to run? Is it wrong for me to run like at full speed at all times? I do feel more comfortable running, it's just I look like an idiot running really fast while other runners are running at a slower pace.
You say you are new to running so first and foremost your body takes time to adapt. Your running action will also be slightly different running at slow speed than when running fast or sprinting. I find I tend to have a more slouched posture when on slow runs than I do when running at race pace. It could possibly have something to do with your trainers too. Get a gait analysis done and make sure you're wearing the correct trainers for your running style. As for 10k training, you need to vary your training as @Anthony Grist sys. Mix long slower runs with shorter, more intense intervals or speed work on a track. Bit the best advice I can give you is build up gradually. Don't do too much too soon. I was very enthusiastic when I started running so made that mistake and ended up having all sorts of problems with my knees and constantly feeling in pain. There isn't really a 'one size fits all' answer when it comes to running as everyone is different. Just listen to your body and find out what is best for you. You will soon improve over time as your body adapts and you will be able to do more without feeling tired or having aches and pains