Painful shoes

I bought a size 3 pair of shoes in 2013, I am a student nurse and was advised it would be the most comfortable.<br> <br> I have found myself wearing them on and off because of the pain. I wear a size 4 but had to take a size 3 because the other one was too loose. The size 3 fits fine but the pain on the toes had been so bad. <br> <br> I am mentioning this because I have been meeting other fellow nurses and they are complaining of the same thing. I dont want anything either than to say as strong as the shoes are. Us that have sizes that are halfs are suffering. I really regret why I bought it. I only wish that some one had tols me sooner