I Want To Check My Symptoms For Parkinsons Disease. I

I want to check my symptoms for Parkinsons disease. I am bipolar 2 patient, mostly depression. No medicines work anymore, and last year I had 14 ECT treatments without much result. I just turned 76 and have symptoms of shaking, worrying memory loss and easy mental overwhelm, my handwriting has changed, I am experiencing psychomotor retardation, stiffness in walking, extreme fatigue, poor appetite. I am going off 450 mg of Lithium for the past year and a half, and probably 90 mg daily Cymbalta if my depression does not lift soon. This would leave me with just 50 mg of Trazodone and 1 mg of Attivan at bedtime for sleep. I am beginning to think that there is something else wrong besides depression. Lately I've had a complete blood work to check for other possibilities. The blood work was ok, including cortisol. Should I be checked out for Parkinson's? Thank you.