All hernia means is a bulging or protrusion of an organ or connective tissue that shouldn't, so that can cover a lot of ground (so to speak). So yes, I think it's possible.
http://www.merriam-webster.com/medlineplus/hernia
http://en.wikipedia.org/wiki/Hernia
The increase in size could be due to inflammation/swelling. Can you try an
NSAID (e.g. aspirin ibuprofen, naproxen, etc.) to see if it helps the inflammation/pain?
Doc