@janni1, Welcome to Connect. I have had tremors related to tacrolimus, too. As a 13 year transplant recipient, my tremors are mild and occasional. When I had tremors early in my post transplant history, they were a nuisance. However, what you describe sounds like more than a nuisance.
If you are a recent transplant recipient, you should begin to feel relief as the tacrolimus and other medications are lowered to a maintenance level.
When did you receive your transplant?