At every level of care — home health, skilled nursing, outpatient — you can say some version of this:
"My speech changed after my stroke. I want a speech-language evaluation for aphasia and apraxia."
That's it. Say it to the doctor, the nurse, the case manager, the therapist. Say it at every handoff until someone evaluates you. You're allowed to advocate for yourself, and if you're the family member reading this, you're allowed to advocate for them.