neck/head tremor, for the last 6 months, mostly when watching TV, concentrating, thinking, has gotten more increaded episodes, I 'am 59 yr old female, with hypothyroid, on meds 100mg,a day,dose. Take prozac 20mg 2x a day, fluid pill, zanax, zocor,estrogen replacement, Prescription Vit D 50,000 once a week, for low Vit D level. Recent labs was fine. Any suggestions. Had elderly aunt with Parkinson's.