Is Digoxin Causing Leg Pain And Tremors?

I'm 89 years old & have been on a medicine called Digoxin for approx. 3 months for irregular heartbeat. In the last 5-6 weeks, I have had leg pain going from my calves up to my buttocks & I am having tremors in different parts of my body & due to the leg pain, feel very unsteady walking when I first get up. Is this medicine a probable cause for these symtoms?