Hi Laurie,
Glad to hear overall things are well. As James mentioned, this depends on many things. I am over 3 years post radiation and have notice my speech varies day to day and even morning to night. Some days it seems clearer than others. I think it depends on many things - what i ate, drank, tongue and swallowing exercises, hydration, etc. I still have to dig some food items out occasionally. If I am in public, i use a napkin to cover my mouth. I also find myself doing all kinds of weird jaw gyrations as i eat trying work stuff loose. I have also noticed my saliva production is not consistent and has an effect on my speech and ability to process some foods.
Also, what was involved in your surgery? I noticed a much bigger challenge with eating and speech after surgery but had half my tongue replaced.