My voice sounds clear and audible in the mornings, but as the day goes by, it becomes unclear?

As a result, i find it difficult to pronounce words and get my messages across when communicating. What do you suggest i do, to maintain my clear voice throughout the day and not just in the mornings ? Thank YouMy voice sounds clear and audible in the mornings, but as the day goes by, it becomes unclear?
There are many answers that it could be, but one of them that you probably won't think you have but its possible ( I have it too) its called Larangophyngeal reflux disease ( acid reflux) but instead of it giving you heart burn the acid is sitting right around your voice box and making you sound very congested and making it hard to speak. Have you tried WEBMD? Its a really good site and you can go to the symptom checker and it should help. If it is acid reflux then cut out spicy foods and fruits like oranges, chocolate, and soda and you will feel and sound so much better.