Lee Silverman Voice Therapy is a good place to start when voice problems begin. http://www.lsvtglobal.com/

The first indication that voice involvement is beginning is lowered volume. People may have to ask you to repeat what you say or say that they cannot hear you. LSVT tells you to always speak loudly.

And when the muscles around the larynx are involved, so are the muscles hat help you swallow. Choking is a common hazard for advancinig PWP.

Singing is good therapy for your voice, also. And if you cannot carry a tune in a bucket, sing in t he shower instead! lol
Peggy