Sometimes these issues can be sorted out with a change in technique, but sometimes they hang on no matter what changes we make.
I am one of your followers and enjoy reading your cello tips and stories.
I am an adult cello student of 5 years in the Cincinnati area and have been taking private lessons all along. I am playing in Suzuki book 4 and other pieces on a similar level.
Recently I have been having difficulty with a trigger thumb in my right hand and I suspect it is due to tension in my bow hand. The problem first started in September and I had a cortisone injection which cleared up the issue until late November, when it resurfaced.
I took a month break over the holidays with very little physical playing but some mental playing and air bowing. I was hoping the rest from playing would help but it didn't.
I would welcome any suggestions you could recommend.