Based only on what you've written and the symptoms you have described there's relatively few symptoms that I can pick out that would form the basis for a diagnosis of a mixed episode. That's not to say you aren't having one. Just a thought from my own personal experience, that's all, it's not a medical diagnosis.

The conundrum is the sex drive. Hmmmm.

I would think if you are indeed having a mixed episode you may be experiencing other symptoms. Are you?