Paint Problem

[980ceanblue]

The hood on my car has developed a strange looking spot on the lower right corner. It looks like something is in the paint. I bought the car used from private party and there was no indication that is was wrecked and repainted. I checked the inside of the hood and nothing looks amiss. I had a 911 and there was a guy that did a color sand on it and removed a scratch on the door. I was wondering if anyone here can give me info on how to fix this problem on my hood. It is Ocean blue metallic. Can it be color sanded? I will try to post a pic to show the problem.