If the size of your lips is bothersome, you can consider a lip reduction. You do not have abnormally large lips. The procedure can be done in the office under local anesthesia. I would suggest meeting with a board certified plastic surgeon and discussing all your concerns and options.
The size of one's lips is a personal preference. Only you can answer the issue of whether they are too big or not. No aesthetic procedure, including lip reduction, is necessary medically. It is only so if you think it is.