My hands have been shaky lately. are my muscles becoming too weak?

Tremors: Several reasons for hand shaking. If you find tremors on holding arms extended, may be essential tremor or thyroid problem. Shaking with arms at rest may be early parkinson's. I have seen shaking with disorders of nerve and muscle, and a variety of other problems. Seek out a neurologist and get evaluated, as all of the above responds to therapy.