Again, stop taking "Statin Drugs", the drugs prescribed for lowering cholesterol.
I'm not a doctor, but I went through this, and then they tried me on every one of them with varying side effects, so now I'm completely off of them. Nobody ever died from high cholesterol. My sister can't take them either. Trigger fingers are the least of the side effects. The worst "Lipitor" had me so crippled that I almost couldn't stand up, and once standing I needed 2 canes to get around. This happened 21 years ago after they first put me on Lipitor in 2000. It took 2 1/2 years for it to be this crippling, and only 2 days off of it before I could stand and walk without the canes, though not completely recovered from it. These are sneaky drugs. Their side effects come on very slowly, so you don't realize what is causing your problem. But every one of them that they put me on caused varying side effects that went away in a few days to a few weeks after stopping them. Only now is the medical industry beginning to admit that these were not a good treatment. No one has died from high cholesterol, but they have sure suffered from the side effects of these cholesterol treatment drugs.
Stop taking them for 2 days and see if you feel better. Trigger finger problems take a bit longer to heal. When is the last time your hand writing was legible? Mine took 7 years to be completely legible and close to what it was back when I graduated high school (have a HS Notebook for comparison). When on Lipitor and just before getting off of it, my hand writing was so bad that even I had trouble recognizing what it said. My hands no longer have the shakes either, and I can do small projects accurately and without difficulty again.
Charley