You could. Far as I know, their are various degrees of Theiranthropy. I have a weaker form of it. I don't feel phantom appandages, but randomly at night (out of the clear blue, or should I say black, since it's at night) I go ballistic with energy and I HAVE to run and be, well, a wolf. I also want to hunt, like a wolf, very badly when these uncontrollable urges happen. Almost as if Im becomeing a werewolf, but my body stays the same. The weakest form of therianthropy of that I know is when you just have several personality traits that are similer to that of the animal you are like. I have that too. What Im getting at is you don't have to have phantom appendages to be a therian. Their are other, lesser, ways. Chances are, though, that if you are trying to attain these thigns, you probably are a therian by default. So I would say yes.