any suggestions ?

Well it depends, are the ones for theory comfortable enough to be on your feet all day long? If so then use the same ones if not buy a new pair, ones that will keep your feet happy.

So im starting clinicals soon and i want to know if its a good idea to buy another pair of shoes just for clinicals. right now i have a pair just for theory, and thinking maybe i should just wear the one i do for theory. soo would it be a better idea to buy new shoes just for clinicals and have one for theory?

I would.

My first reason is health reasons. Hospitals have lots of things in them you don't want to take home with you. So you should have a pair of shoes just for the hospital that you can take off before you walk inside your home. This might just be me being a germ-freak but the thought of bringing home some of the things my patients had freaks me out.

My second reason is the fact that if you are using 1 pair of shoes all the time you will wear the shoes out faster.. so you might as well have two.

i agree with the above...ALWAYS have a separate pair of shoes for clinicals (and you can use them over when you start working!)

you don't know what you'll step on...