Cramps under your chin? Yes, after my first long term bout with Prednisone I had cramps in my neck, under my chin, and it seems like nearly every where on my body. I can't remember my tongue cramping, but .... let me think, it is a smooth muscle I think, not striated.
Our bodies are amazing.... until they start malfunctioning, then it seems like we can just hang on. If I wrote down each malfunction I have in a week I would be nominated for the "Whiner and sniveler Hall of Fame."
Until Prednisone I seriously don't remember having cramps. I know I must have had one at one time or another, but very few. Like headaches... I get one a year at the most. I am really blessed there.
Just remember, it could always be worse.