Not senseless at all! I'd say this is pretty important and certainly worth talking about! Just like with a physical issue, you might consider seeking a second opinion. Dissociation is not a conscious process. However, I am not suggesting that since you appear to create your ALTS consciously, that it cannot be DID. Are you sure that your process is entirely conscious? DID is not rare even if it is less common than many other disorders. It has been estimated to occur in 1% of the population and that's a low estimate since nt everyone with DID will have been diagnosed. When you think about it, it adds up to a significant number of people.
Good luck in your search for truth. Whatever, you are always welcome here.