Do I have tuberous breasts as I'm worried they are deformed in some way? (Photos)

I don't think anyone looking at your photos would say you have tuberous breasts. I see what you are talking about with your areolar shape and perhaps on some level this maybe a very, very mild form of a tuberous shape. It is very common and would not impact your results of a breast augmentation. The interesting thing about tuberous breasts is that we are taught they are relatively uncommon, but in fact, when you have been in practice for years you realize there are many, many patients that are on the tuberous spectrum, as it were, who have very, very mild features found in patients with more definitive cases of tuberous breasts. 

Based on your photos your breasts are normal and not tuberous.  Your nipple/areola complex is slightly puffy which could be addressed surgically if it is bothersome.   If interested see a board certified plastic surgeon near you.